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X-WR-CALDESC:Events for ABDNHA
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260404T100000
DTEND;TZID=America/Los_Angeles:20260404T130000
DTSTAMP:20260513T223100
CREATED:20260327T171454Z
LAST-MODIFIED:20260327T171454Z
UID:10001128-1775296800-1775307600@abdnha.org
SUMMARY:BRAG: Borrego ROCKS!
DESCRIPTION:The Borrego Rock and Gem (BRAG) Club will be hosting a demonstration event in the Visitor Plaza just outside of the Nature Center. Come see BRAG members cut geodes\, demonstrate lapidary work\, display rocks that are local to Southern California\, and answer questions about local rockhounding. Each visitor gets to select a free rock to take home! Geodes\, patches and stickers will be available for sale. Free; no registration required.
URL:https://abdnha.org/activity/brag-borrego-rocks-2/
LOCATION:ABDNHA Visitor Plaza\, 652 Palm Canyon Drive\, Borrego Springs\, 92004\, United States
CATEGORIES:Club,Special Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260328T083000
DTEND;TZID=America/Los_Angeles:20260328T120000
DTSTAMP:20260513T223100
CREATED:20260327T165528Z
LAST-MODIFIED:20260327T165528Z
UID:10001127-1774686600-1774699200@abdnha.org
SUMMARY:Hike: Exploring Coyote Canyon - CANCELLED
DESCRIPTION:Leader: Marlin Burke\, Naturalist Volunteer \n*** HIKE IS CANCELLED DUE TO EXTREME HEAT *** \nWe meet at ABDNHA and then carpool to Coyote Creek\, where we explore the history of Native Americans and early settlers\, geology\, paleontology\, Plant life\, Coyote Creek itself\, and whatever else catches our attention. Easy walking; driving on a dirt road. High clearance 2WD or SUV acceptable due to dirt road with possible rocks or potholes. No charge\, but registration is required.  Call or visit the ABDNHA Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/hike-exploring-coyote-canyon-cancelled/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260321T100000
DTEND;TZID=America/Los_Angeles:20260321T130000
DTSTAMP:20260513T223100
CREATED:20260317T213601Z
LAST-MODIFIED:20260317T213601Z
UID:10001090-1774087200-1774098000@abdnha.org
SUMMARY:BRAG: Borrego ROCKS! - CANCELLED
DESCRIPTION:*** THIS PROGRAM IS CANCELLED DUE TO EXTREME HEAT *** \nThe Borrego Rock and Gem (BRAG) Club will be hosting a demonstration event in the Visitor Plaza just outside of the Nature Center. Come see BRAG members cut geodes\, demonstrate lapidary work\, display rocks that are local to Southern California\, and answer questions about local rockhounding. Each visitor gets to select a free rock to take home! Geodes\, patches and stickers will be available for sale. Free; no registration required.
URL:https://abdnha.org/activity/brag-borrego-rocks-cancelled/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Club,Special Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260314T083000
DTEND;TZID=America/Los_Angeles:20260314T120000
DTSTAMP:20260513T223100
CREATED:20260212T192319Z
LAST-MODIFIED:20260212T192319Z
UID:10000987-1773477000-1773489600@abdnha.org
SUMMARY:Hike: Exploring Coyote Canyon
DESCRIPTION:Leader: Marlin Burke\, Naturalist Volunteer \nWe meet at ABDNHA and then carpool to Coyote Creek\, where we explore the history of Native Americans and early settlers\, geology\, paleontology\, Plant life\, Coyote Creek itself\, and whatever else catches our attention. Easy walking; driving on a dirt road. High clearance 2WD or SUV acceptable due to dirt road with possible rocks or potholes. No charge\, but registration is required.  Call or visit the ABDNHA Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/hike-exploring-coyote-canyon-4/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260228T083000
DTEND;TZID=America/Los_Angeles:20260228T123000
DTSTAMP:20260513T223100
CREATED:20260220T230804Z
LAST-MODIFIED:20260220T230804Z
UID:10001054-1772267400-1772281800@abdnha.org
SUMMARY:4WD Field Trip: Ancient Lake Cahuilla
DESCRIPTION:Special Earth Science Series! \nLeader: John Peterson\, Hydrologist and Geologist \nApproximately 12\,000 years ago\, the Colorado River altered its course\, forming a massive prehistoric lake known as Lake Cahuilla\, which is now the Salton Sea.   The lake served as a vital resource for the Cahuilla\, Kumeyaay\, and Cocopah peoples. Over the centuries\, the lake filled and dried up many times. It last filled between 1731 and 1733. Hydrologist John Peterson will lead a half-day field trip to the Salton Sea\, where participants can explore the ancient lake’s remnants\, including visible “bathtub rings” and fishing traps. Meet at ABDNHA at 8:15 am. General Public: $18\, Members: $12\, Volunteers: $10. Register online or at the Nature Center\, 760-767-3098. \nRegister here for the field trip.
URL:https://abdnha.org/activity/4wd-field-trip-ancient-lake-cahuilla/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:4WD,Field Trip
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260228T083000
DTEND;TZID=America/Los_Angeles:20260228T120000
DTSTAMP:20260513T223100
CREATED:20260212T191614Z
LAST-MODIFIED:20260212T191614Z
UID:10000975-1772267400-1772280000@abdnha.org
SUMMARY:Hike: Exploring Coyote Canyon
DESCRIPTION:Leader: Marlin Burke\, Naturalist Volunteer \nWe meet at ABDNHA and then carpool to Coyote Creek\, where we explore the history of Native Americans and early settlers\, geology\, paleontology\, Plant life\, Coyote Creek itself\, and whatever else catches our attention. Easy walking; driving on a dirt road. High clearance 2WD or SUV acceptable due to dirt road with possible rocks or potholes. No charge\, but registration is required.  Call or visit the ABDNHA Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/hike-exploring-coyote-canyon-2/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260221T080000
DTEND;TZID=America/Los_Angeles:20260221T160000
DTSTAMP:20260513T223100
CREATED:20260212T191617Z
LAST-MODIFIED:20260212T191617Z
UID:10000971-1771660800-1771689600@abdnha.org
SUMMARY:Geology Hike: Ash Wash
DESCRIPTION:Speaker: Don Barrie\, Geoscience Educator\, ABDNHA Board Member \nJoin Don Barrie for this moderate 5-mile loop hike to Ash Wash\, a tributary of Coyote Canyon. Our destination will be the Bishop Tuff—an ash layer deposited around 760\,000 years ago when an enormous volcanic eruption created the Long Valley Caldera in the eastern Sierras. During this eruption\, huge volumes of ash were blown into the atmosphere\, resulting in widespread deposition as far away as the Midwest. At the entrance to Ash Wash\, we’ll examine the Coyote Creek Fault—the western branch of the San Jacinto Fault Zone. Max 23 people (carpooling is encouraged). Bring lunch and water. 4WD vehicle recommended. Hiking poles\, if you have them. Meet at ABDNHA. No charge\, but registration is required at the Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/geology-hike-ash-wash/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:4WD,Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260214T083000
DTEND;TZID=America/Los_Angeles:20260214T120000
DTSTAMP:20260513T223100
CREATED:20251206T213231Z
LAST-MODIFIED:20251206T213231Z
UID:10000768-1771057800-1771070400@abdnha.org
SUMMARY:Hike: Exploring Coyote Canyon
DESCRIPTION:Leader: Marlin Burke\, Naturalist Volunteer \nWe meet at ABDNHA and then carpool to Coyote Creek\, where we explore the history of Native Americans and early settlers\, geology\, paleontology\, Plant life\, Coyote Creek itself\, and whatever else catches our attention. Easy walking; driving on a dirt road. High clearance 2WD or SUV acceptable due to dirt road with possible rocks or potholes. No charge\, but registration is required.  Call or visit the ABDNHA Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/hike-exploring-coyote-canyon/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260211T190000
DTEND;TZID=America/Los_Angeles:20260211T203000
DTSTAMP:20260513T223100
CREATED:20260208T202915Z
LAST-MODIFIED:20260209T003956Z
UID:10001010-1770836400-1770841800@abdnha.org
SUMMARY:Webinar: Geology of San Diego County’s Peninsular Ranges - POSTPONED
DESCRIPTION:This presentation is postponed to a later date.  The new date will be posted here as soon as possible \nSpeaker: Geologist Don Barrie\nPlease join Mesa College geology professor and ABDNHA board member\, Don Barrie\, for his repeat lecture on San Diego County’s Peninsular Ranges\, with emphasis on the Laguna Mountains west of Borrego Springs. Don’s lecture will focus on how plate tectonic processes have created the complex collage of igneous and metamorphic rocks exposed both regionally\, throughout southeastern California\, and locally\, in the Lagunas. GP $12\, M $10\, V $8 (per connection).
URL:https://abdnha.org/activity/webinar-geology-of-san-diego-countys-peninsular-ranges/
LOCATION:Zoom
CATEGORIES:Webinar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260207T183000
DTEND;TZID=America/Los_Angeles:20260207T193000
DTSTAMP:20260513T223100
CREATED:20260131T221417Z
LAST-MODIFIED:20260131T221417Z
UID:10000952-1770489000-1770492600@abdnha.org
SUMMARY:Lecture: Applied Earth Science - The Rare Earth Elements
DESCRIPTION:Speaker: Madhukar (Maud) Rao\, Ph.D. \nRare earth elements have been very much in the news recently\, but what exactly are they?  What are they used for? Why are they so uniquely essential? Where do they come from? How are they processed? And\, why does the U.S. import about 80 percent of them\, despite their importance? Dr. Rao is a retired Chemical Engineer and currently serves as the Chief Strategy Officer for Workforce Development at Innovation Impact Partners\, LLC. He has more than 36 years of industrial R&D experience with major chemical and semiconductor materials companies. Maud volunteers as a math and science teacher and as a docent at the San Diego Air and Space Museum\, and enjoys engineering\, history\, and teaching. In the ABDNHA Library. General Public: $12\, Members: $10\, ABDNHA Volunteers: $8. Register at abdnha.org or the Nature Center at 760-767-3098.
URL:https://abdnha.org/activity/lecture-applied-earth-science-the-rare-earth-elements/
LOCATION:ABDNHA Library\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:In-Person Lecture
ATTACH;FMTTYPE=image/jpeg:https://abdnha.org/wp-content/uploads/2026/01/260207_Rare-Earth-Elements.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260125T090000
DTEND;TZID=America/Los_Angeles:20260125T150000
DTSTAMP:20260513T223100
CREATED:20251206T215505Z
LAST-MODIFIED:20251226T231945Z
UID:10000818-1769331600-1769353200@abdnha.org
SUMMARY:Field Trip: Geology of San Diego County’s Peninsular Ranges - FULL (waitlist)
DESCRIPTION:Special Earth Science Series! \nFIELD TRIP IS FULL – PLEASE CALL ABDNHA at 760-767-3098 to get on waitlist \nLeader: Geologist Don Barrie \nNote the  start and end locations detailed below. Don will lead the group on an exploration of the rocks along Sunrise Hwy.\, west of Borrego Springs. The rocks in this area comprise part of a regional geologic suite known as the Peninsular Ranges Batholith (PRB)\, which extends from southern Baja\, California\, northward into the Palm Springs area. We’ll meet near the intersection of Sunrise Hwy. and Interstate 8\, then follow Sunrise Hwy. into the Laguna Mountains\, stopping to examine rock exposures along the way. The last stop will be in Julian\, where the group will tour the Eagle/High Peak gold mine and learn about the gold rush in Julian during the 1870s. On the field trip\, we’ll discuss the geologic story of how the gold got into the rocks. During the gold mine tour\, we’ll learn how hard-rock miners got the gold out of the rocks. To register\, go to www.abdnha.org\, or call the Nature Center at 760-767-3098. General Public: $20\, Members: $14\, Volunteers: $10. Please note that an additional $14 entrance fee per person is required\, payable upon entry to the mine. \nStart and end locations details: 9:00 am – 3:00 pm\, Sun.\, Jan. 25\, ending at the Eagle-High Peak mine in Julian. Meet at 9:00 am along Sunrise Hwy. (County Rd. S1)\, about 1/4-mile north of the Interstate 8 Sunrise Hwy. exit\, in a dirt parking area along the east side of the road. Bring lunch and water. 2WD okay. Please check the local weather in Mt. Laguna and dress accordingly (it may be chilly). Carpooling is highly recommended. Heavy rain or snow cancels. The trip ends at the Eagle-High Peak Mine in Julian.
URL:https://abdnha.org/activity/field-trip-geology-of-san-diego-countys-peninsular-ranges/
CATEGORIES:Field Trip
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260124T183000
DTEND;TZID=America/Los_Angeles:20260124T193000
DTSTAMP:20260513T223100
CREATED:20251206T215505Z
LAST-MODIFIED:20260120T182142Z
UID:10000821-1769279400-1769283000@abdnha.org
SUMMARY:Lecture: Geology of San Diego County’s Peninsular Ranges
DESCRIPTION:Special Earth Science Series! \nSpeaker: Geologist Don Barrie \nPlease join Mesa College geology professor and ABDNHA board member\, Don Barrie\, for this lecture on San Diego County’s Peninsular Ranges\, with emphasis on the Laguna Mountains west of Borrego Springs. Don’s lecture will focus on how plate tectonic processes have created the complex collage of igneous and metamorphic rocks exposed both regionally\, throughout southeastern California\, and locally\, in the Lagunas. In the ABDNHA Library. General Public: $12\, Members: $10\, Volunteers: $8. A related field trip is scheduled for Sun.\, Jan. 25. \n\nGet Tickets
URL:https://abdnha.org/activity/lecture-geology-of-san-diego-countys-peninsular-ranges/
LOCATION:ABDNHA Library\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:In-Person Lecture
ATTACH;FMTTYPE=image/jpeg:https://abdnha.org/wp-content/uploads/2025/12/Peninsular-Ranges.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260124T084500
DTEND;TZID=America/Los_Angeles:20260124T123000
DTSTAMP:20260513T223100
CREATED:20251206T215505Z
LAST-MODIFIED:20251226T232137Z
UID:10000822-1769244300-1769257800@abdnha.org
SUMMARY:Field Trip: Ancient Lake Cahuilla - FULL (waitlist)
DESCRIPTION:Special Earth Science Series! \nFIELD TRIP IS FULL – PLEASE CALL ABDNHA at 760-767-3098 to get on waitlist \nLeader: John Peterson\, Hydrologist and Geologist \nApproximately 12\,000 years ago\, the Colorado River altered its course\, forming a massive prehistoric lake known as Lake Cahuilla\, which is now the Salton Sea.   The lake served as a vital resource for the Cahuilla\, Kumeyaay\, and Cocopah peoples. Over the centuries\, the lake filled and dried up many times. It last filled between 1731 and 1733. Hydrologist John Peterson will lead a half-day field trip to the Salton Sea\, where participants can explore the ancient lake’s remnants\, including visible “bathtub rings” and fishing traps. Meet at ABDNHA. General Public: $18\, Members: $12\, Volunteers: $10. Register online or at the Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/field-trip-ancient-lake-cahuilla/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Field Trip
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260123T183000
DTEND;TZID=America/Los_Angeles:20260123T193000
DTSTAMP:20260513T223100
CREATED:20260113T000525Z
LAST-MODIFIED:20260119T014131Z
UID:10000933-1769193000-1769196600@abdnha.org
SUMMARY:Lecture: Flash Floods in Semi-Arid Landscapes - FULL (waitlist)
DESCRIPTION:Special Earth Sciences Weekend! \nSpeaker: Suzanne Walther\, Ph.D.\, University of San Diego \nPROGRAM IS FULL – PLEASE CALL ABDNHA at 760-767-3098 to get on waitlist. \nIt has been said that the two most common ways to die in the desert are from thirst and from drowning. Flash floods are the leading weather-related cause of death in the U.S. and many parts of the world\, and cause billions of dollars in damage. Dr. Suzanne Walther is a fluvial geomorphologist. She studies rivers\, streams\, floods\, sediment movement\, and how the natural flow of water shapes the landscape\, interacts with ecosystems\, and significantly impacts human development. The focus tonight is on flash floods in semi-arid areas\, such as Borrego Springs\, where they can occur\, the conditions that lead to their formation\, the powerful forces they unleash\, their effects on water supply and drought\, and what can be done to mitigate their destructive impact on human development. In the ABDNHA Library. General Public: $12\, Members: $10\, Volunteers: $8. You can register online at abdnha.org or at the Nature Center\, 760-767-3098. \n\n\n  Get Tickets
URL:https://abdnha.org/activity/lecture-flash-floods-in-semi-arid-landscapes-full-waitlist/
LOCATION:ABDNHA Library\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:In-Person Lecture
ATTACH;FMTTYPE=image/jpeg:https://abdnha.org/wp-content/uploads/2025/12/260123_Flash-Floods.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260112T080000
DTEND;TZID=America/Los_Angeles:20260112T120000
DTSTAMP:20260513T223100
CREATED:20251224T231735Z
LAST-MODIFIED:20260112T190351Z
UID:10000892-1768204800-1768219200@abdnha.org
SUMMARY:Hike: Truckhaven Rocks to Coachwhip (Moderate to Fairly Strenuous) - FULL (waitlist)
DESCRIPTION:Leader: Bruce Kelley\, ABDNHA Volunteer \nHIKE IS FULL – PLEASE CALL ABDNHA at 760-767-3098 to get on waitlist. \nThis walk will explore ancient rocks that were split from the Santa Rosa Mountains and uplifted due to tectonic action\, located just northwest of S22\, near the Salton Sea. This is a moderate three-mile hike mostly in Truckhaven Wash\, circling behind the main rocks visible from the highway. We will leave that wash and cross a ridge to emerge in Coachwhip Canyon. The last part up and the first part down the ridge are steep. Bring water\, hat\, sunscreen\, hiking shoes and you may want a stick (I’ll have several extras). Bring your AWD or 4WD vehicle if possible. We are going to do a shuttle hike. Meet in the parking lot of ABDNHA by 7:50 am. \n 
URL:https://abdnha.org/activity/hike-truckhaven-rocks-to-coachwhip-moderate-to-fairly-strenuous-full-waitlist/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260110T083000
DTEND;TZID=America/Los_Angeles:20260110T120000
DTSTAMP:20260513T223100
CREATED:20251224T231438Z
LAST-MODIFIED:20251224T231438Z
UID:10000891-1768033800-1768046400@abdnha.org
SUMMARY:Hike: West Truckhaven Wash (Moderate) - FULL (waitlist)
DESCRIPTION:Leader: Kathy Bussey\, ABDNHA Volunteer \nA mile east of Arroyo Salado\, on the North side of S22\, lie the unique Truckhaven Rocks\, a Swiss cheese sandstone formation. This 2.3-mile round-trip hike skirts the West side of the Rocks. We will walk up a sandy wash that eventually narrows between weathered sandstone walls. The hike is easy. However\, there is one three-foot dry waterfall that we need to climb up. Meet at ABDNHA and be willing to carpool. 2WD OK. Bring water\, snacks\, a hat\, and sturdy boots. Call 760-767-3098 to reserve. Limit: 18.
URL:https://abdnha.org/activity/hike-west-truckhaven-wash-moderate-full-waitlist/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260109T183000
DTEND;TZID=America/Los_Angeles:20260109T193000
DTSTAMP:20260513T223100
CREATED:20260106T002752Z
LAST-MODIFIED:20260106T002752Z
UID:10000920-1767983400-1767987000@abdnha.org
SUMMARY:Lecture: The Story of the Salton Sea - FULL
DESCRIPTION:THIS PROGRAM IS FULL. \nSpeaker: Dave Blanchet\, (ret.) Hydrologist \nFirst there was the geology\, and then came the flood.  The Salton Sea is located along the San Andreas Fault\, and it is geology that repeatedly created and drained a vast natural lake over millions of years\, called Lake Cahuilla\, in what is now the Imperial Valley. Starting in the 20th century\, agriculture began to flourish in California’s Imperial Valley\, and diversion canals were dug to divert water from the Colorado River into the dry desert.  But the wild nature of the Colorado River soon took the upper hand. Events went horribly awry as record-breaking floodwaters destroyed the manmade dams and canals\, and the full flow of the Colorado River flowed unabated into the Salton Trough for two years. Only through immense effort was the flooding finally stopped\, and the Colorado River returned to its course\, flowing into the Sea of Cortez.  Tonight’s speaker\, Dave Blanchet\, is a retired hydrologist from Anchorage\, Alaska\, and a lifetime member of ABDNHA.  General Public: $12\, Members: $10\, Volunteers: $8. Please register at www.abdnha.org or at the Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/lecture-the-story-of-the-salton-sea-full/
LOCATION:ABDNHA Library\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:In-Person Lecture
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251217T140000
DTEND;TZID=America/Los_Angeles:20251217T150000
DTSTAMP:20260513T223100
CREATED:20251003T174626Z
LAST-MODIFIED:20251003T175848Z
UID:10000657-1765980000-1765983600@abdnha.org
SUMMARY:Borrego Rock & Gem Club (BRAG) Meeting
DESCRIPTION:Like rocks? Join BRAG and meet other rockhounds! \nThe BRAG club meets every 4th Wed of the month in the Activity Room. \nNote: In Nov & Dec\, the meeting is on the 3rd Wed due to holidays.
URL:https://abdnha.org/activity/borrego-rock-gem-club-brag-meeting/2025-12-17/
CATEGORIES:Club
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251207T080000
DTEND;TZID=America/Los_Angeles:20251207T120000
DTSTAMP:20260513T223100
CREATED:20251205T220310Z
LAST-MODIFIED:20251205T220310Z
UID:10000868-1765094400-1765108800@abdnha.org
SUMMARY:Hike: West Butte\, Hawk Valley (Fairly Strenuous) - FULL (waitlist)
DESCRIPTION:HIKE IS FULL. Call 760-767-3098 to get on waitlist. \nTrip leader: Tom Keffer \nGorgeous sandstone cliffs\, killer views out the Borrego Valley\, all in a close-to-home package. We will be entering from Hawk Valley\, then climbing up a hidden slot to the ridge above\, then on to West Butte. 3.5 miles RT\, 500′ of climbing\, steep sections with scary drop offs\, some step-ups. Access road is suitable for most 2WD. Meet at ABDNHA by 7:50 a.m. Bring lunch/snacks\, water. Call 760-767-3098 to reserve. Limit: 10.
URL:https://abdnha.org/activity/hike-west-butte-hawk-valley-fairly-strenuous-full-waitlist/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251206T090000
DTEND;TZID=America/Los_Angeles:20251206T150000
DTSTAMP:20260513T223100
CREATED:20251205T220650Z
LAST-MODIFIED:20251205T220650Z
UID:10000869-1765011600-1765033200@abdnha.org
SUMMARY:Hike: Geology Hike to Canyon Sin Nombre (Moderate) - FULL (waitlist)
DESCRIPTION:HIKE IS FULL. Call 760-767-3098 to get on waitlist. \nLeader: Geologist Don Barrie \nJoin Don on a hike to explore the geology of Canyon Sin Nombre\, located in a major fault zone\, and shaped by ancient faulting\, sedimentary rock\, and ongoing erosion. Meet along S2\, at the intersection of  S2 and Canyon Sin Nombre Road. Bring lunch and water. 4WD required. Register at the ABDNHA Nature Center or call 760-767-3098. \nNote: Meet at the intersection of S2 and Canyon Sin Nombre Road.
URL:https://abdnha.org/activity/hike-geology-hike-to-canyon-sin-nombre-moderate-full-waitlist/
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251204T150000
DTEND;TZID=America/Los_Angeles:20251204T180000
DTSTAMP:20260513T223100
CREATED:20251031T202935Z
LAST-MODIFIED:20251031T205756Z
UID:10000741-1764860400-1764871200@abdnha.org
SUMMARY:ABDNHA Members 4WD Tour: Full Moon at Font's Point - FULL (waitlist)
DESCRIPTION:4WD TRIP IS FULL. Call 760-767-3098 to get on waitlist. \nLeader: Jim Torian\, ABDNHA Volunteer\nJoin us for the “Cold Moon” rising as viewed from Font’s Point. This is the last full moon of 2025. The sun’s low angle should offer striking views of the Borrego Badlands\, Ocotillo Wells\, and the Salton Sea. Meet at the ABDNHA Nature Center parking lot at 3 p.m. for a quick briefing\, then head east on S22 to Font’s Point Wash\, turning off on a washboard and sandy wash for 4 miles. Walk less than 100 yards to the overlook. Bring camera\, beverage\, and snack to enjoy with the moonrise at 4:17 p.m. We will leave by 5:30 p.m. to return to S22\, where our journey ends. This portion will be at night and offer a different perspective off-road. Check the weather and dress accordingly; this trip is weather-dependent. Bring a chair\, a full tank of fuel\, and ensure you have 4WD (AWD is OK). GMRS Radio Ch. 15 is optional. Limited space and vehicles. No charge. Register at the ABDNHA Nature Center or 760-767-3098. ABDNHA members only. If you are not a member\, you may request being put on the waitlist.
URL:https://abdnha.org/activity/abdnha-members-4wd-tour-full-moon-at-fonts-point-full-waitlist/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:4WD
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251201T083000
DTEND;TZID=America/Los_Angeles:20251201T120000
DTSTAMP:20260513T223100
CREATED:20251031T202420Z
LAST-MODIFIED:20251031T205940Z
UID:10000739-1764577800-1764590400@abdnha.org
SUMMARY:Hike: Skeleton Canyon Slot (Moderate) - FULL (waitlist)
DESCRIPTION:HIKE IS FULL. Call 760-767-3098 to get on waitlist. \nLeader: Robin Halford\, ABDNHA Volunteer\nThis hike goes into the red colored mud hills of the Skeleton Canyon Fault\, part of the larger San Andreas Fault Complex\, with a wonderful slot canyon before the stopping point. Expect uneven ground and some bouldering. The total hike distance (round trip) is 4.9 miles. Sturdy shoes recommended. Bring snack/lunch and water. Limit 10. \nNote: Meet at Painted Canyon Road off of Box Canyon Road! \nDriving instructions to meeting place: Drive North on Hwy 86 and go right (east) on 66th Ave. Go over the bypass bridge and turn right (east) at the\nlight. Drive 4.5 miles and turn left onto Painted Canyon Road. We will meet here. The road is usually OK for 2WD with high clearance. 4WD/AWD suggested. Register at or call the Nature Center.
URL:https://abdnha.org/activity/hike-skeleton-canyon-slot-moderate-full-waitlist/
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251129T090000
DTEND;TZID=America/Los_Angeles:20251129T123000
DTSTAMP:20260513T223100
CREATED:20251031T200835Z
LAST-MODIFIED:20251031T210228Z
UID:10000737-1764406800-1764419400@abdnha.org
SUMMARY:Field Trip: Borrego’s Strontium Volcano (Moderate) - FULL (waitlist)
DESCRIPTION:FIELD TRIP IS FULL. Call 760-767-3098 to get on waitlist. \nLeader: John Peterson\, Hydrologist and Geologist\nVisit this interesting old mine site\, active in the 1940s\, located north of the entrance to Fish Creek and north of the gypsum mine. The deposit was mined for strontium in WWII\, which was used in flares during the war. The deposit likely formed during an extrusive hydrothermal event when the mineral was extruded through surface vents. These vents are still present on the surface of the deposit. This moderate hike is about a 1.5-mile roundtrip with a vertical gain of 500 feet on an old mining road and trail. The surface is rough and rocky\, so hiking shoes are required\, and hiking poles recommended. We will start and return in the ABDNHA parking lot and carpool as needed. From ABDNHA\, the drive to the site includes 0.5 miles on Fish Creek Road\, which is rocky with areas of soft sand. High clearance is required\, and 4WD recommended. No charge\, but registration is required\, 760-767-3098.
URL:https://abdnha.org/activity/field-trip-borregos-strontium-volcano-moderate-full-waitlist/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Field Trip
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251122T090000
DTEND;TZID=America/Los_Angeles:20251122T160000
DTSTAMP:20260513T223100
CREATED:20251121T232649Z
LAST-MODIFIED:20251121T232850Z
UID:10000757-1763802000-1763827200@abdnha.org
SUMMARY:Hike: Fossil Canyon Geology Hike (Easy) - CANCELLED DUE TO RAIN
DESCRIPTION:HIKE IS CANCELLED DUE TO RAIN \nLeader: Geologist Don Barrie\, ABDNHA Volunteer\nThis hike leads through Fossil Canyon in the Coyote Mountain Wilderness area of Anza-Borrego Desert State Park. It takes its name from the fossilized corals\, shells\, and other marine life found there\, telling a tale that is millions of years old\, when this part of the desert was under water. \nNote: Meet on S2 and Shell Canyon Road near Ocotillo! \nMeet at the intersection of S2 (Imperial Highway) and Shell Canyon Road\, just north of the town of Ocotillo. Bring lunch and water. 4WD required. Register at the Nature Center or 760-767-3098.
URL:https://abdnha.org/activity/hike-fossil-canyon-geology-hike-easy-cancelled-due-to-rain/
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251119T140000
DTEND;TZID=America/Los_Angeles:20251119T150000
DTSTAMP:20260513T223100
CREATED:20251003T174626Z
LAST-MODIFIED:20251003T175848Z
UID:10000656-1763560800-1763564400@abdnha.org
SUMMARY:Borrego Rock & Gem Club (BRAG) Meeting
DESCRIPTION:Like rocks? Join BRAG and meet other rockhounds! \nThe BRAG club meets every 4th Wed of the month in the Activity Room. \nNote: In Nov & Dec\, the meeting is on the 3rd Wed due to holidays.
URL:https://abdnha.org/activity/borrego-rock-gem-club-brag-meeting/2025-11-19/
CATEGORIES:Club
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251112T080000
DTEND;TZID=America/Los_Angeles:20251112T150000
DTSTAMP:20260513T223100
CREATED:20251006T210551Z
LAST-MODIFIED:20251006T210647Z
UID:10000692-1762934400-1762959600@abdnha.org
SUMMARY:Borrego Rock & Gem Club (BRAG) Field Trip
DESCRIPTION:Like rocks? Join BRAG and meet other rockhounds! \nThe BRAG club field trip is every 2nd Wed\, meeting in the ABDNHA parking lot. \nThe October field trip will take us to a kyanite mine off Ogilby Road in the Cargo Muchachos Mountains. Meet in the ABDNHA parking lot at 8:00 a.m. \nNote: Sometimes the field trips may start at 8:00 am instead of 9:00 am. We usually try to get back to Borrego around 3:00 pm.
URL:https://abdnha.org/activity/borrego-rock-gem-club-brag-field-trip-251112/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Club,Field Trip
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251108T093000
DTEND;TZID=America/Los_Angeles:20251108T123000
DTSTAMP:20260513T223100
CREATED:20250928T181824Z
LAST-MODIFIED:20251031T204958Z
UID:10000586-1762594200-1762605000@abdnha.org
SUMMARY:Field Trip: Ancient Lake Cahuilla
DESCRIPTION:FIELD TRIP IS FULL. Call 760-767-3098 to get on waitlist. \nLeader: John Peterson\, Hydrologist and Geologist\nStarting approximately 12\,000 years ago\, the Colorado River periodically changed its course\, flowing north into the Salton Sink and creating a massive prehistoric lake. For thousands of years\, this lake filled and dried up repeatedly\, becoming an important source of food and water for the Cahuilla\, Kumeyaay\, and Cocopah peoples. The last time the lake was filled was between 1731 and 1733. Hydrologist John Peterson will lead this half-day field trip to the Salton Sea\, providing an opportunity to look back in time and explore the remnants of the ancient lake\, including the ancient shoreline (the “bathtub ring”) that is still visible and the fish traps along the old shoreline. 15 people. General Public: $18\, Members: $12\, Volunteers: $10. Register online or at the Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/field-trip-ancient-lake-cahuilla-251108/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Field Trip
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251103T083000
DTEND;TZID=America/Los_Angeles:20251103T120000
DTSTAMP:20260513T223100
CREATED:20251031T211222Z
LAST-MODIFIED:20251031T211306Z
UID:10000746-1762158600-1762171200@abdnha.org
SUMMARY:Hike: Aggregate Canyon (Strenuous) - FULL (waitlist)
DESCRIPTION:HIKE IS FULL. Call 760-767-3098 to get on waitlist. \nLeader: Robin Halford\, ABDNHA Volunteer \nAggregate Canyon is one of the most fascinating slot canyons in the Mecca Wilderness. The long hike up the wash is interesting and then the slot canyon goes for quite a distance. This hike would be rated easy\, except that the last 0.1 mile is a steep climb up the rim for a view of the Salton Sea. The total hike distance (round trip) is 4.8 miles. Sturdy shoes\, walking sticks recommended. Bring snack/lunch and water. Limit 10. \nNote: Meets at Box Canyon! \nDriving instructions to meeting location: Drive North on Hwy 86\, and go right (east) on 66th Ave. Go over the bypass bridge and turn right (east) at the light. Drive 7.0 miles (2.5 miles past Painted Canyon Road)\, and park on the left (N) side of Box Canyon Road. No charge. Register at the ABDNHA Nature Center.
URL:https://abdnha.org/activity/hike-aggregate-canyon-strenuous-full-waitlist/
CATEGORIES:Hike
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251022T200000
DTEND;TZID=America/Los_Angeles:20251022T200000
DTSTAMP:20260513T223100
CREATED:20251003T174626Z
LAST-MODIFIED:20251003T175848Z
UID:10000655-1761163200-1761163200@abdnha.org
SUMMARY:Borrego Rock & Gem Club (BRAG) Meeting
DESCRIPTION:Like rocks? Join BRAG and meet other rockhounds! \nThe BRAG club meets every 4th Wed of the month in the Activity Room. \nNote: In Nov & Dec\, the meeting is on the 3rd Wed due to holidays.
URL:https://abdnha.org/activity/borrego-rock-gem-club-brag-meeting/2025-10-22/
CATEGORIES:Club
END:VEVENT
END:VCALENDAR