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X-WR-CALNAME:ABDNHA
X-ORIGINAL-URL:https://abdnha.org
X-WR-CALDESC:Events for ABDNHA
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TZID:America/Los_Angeles
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DTSTART:20250309T100000
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DTSTART:20251102T090000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260118T080000
DTEND;TZID=America/Los_Angeles:20260118T140000
DTSTAMP:20260422T040402
CREATED:20260117T213346Z
LAST-MODIFIED:20260117T213346Z
UID:10000934-1768723200-1768744800@abdnha.org
SUMMARY:Hike: Mountain Palm Springs (Moderate)
DESCRIPTION:Leaders: Tom Keffer and Lee Christie\, ABDNHA Volunteers \nWe will visit not one\, not two\, not three\, but five different palm groves\, some of them with up to a hundred trees! 4.5-mile round-trip\, 550’ vertical\, mostly soft sand\, but there are some moderate sections with a bit of bouldering. Be prepared to pay a $10 parking fee. Travel time is 1 1⁄4 hours each way. Meet at ABDNHA by 7:50 am. Bring lunch/snacks\, water. Call 760-767-3098 to reserve. Limit: 10.
URL:https://abdnha.org/activity/hike-mountain-palm-springs-moderate/
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:20260119T075000
DTEND;TZID=America/Los_Angeles:20260119T130000
DTSTAMP:20260422T040402
CREATED:20251206T215744Z
LAST-MODIFIED:20260112T003504Z
UID:10000826-1768809000-1768827600@abdnha.org
SUMMARY:Hike: California Riding and Hiking Trail Part 2 (Strenuous)
DESCRIPTION:Leader: Rachel Rench\, ABDNHA Volunteer \nMeet at the ABDNHA parking lot at 8:00 am to arrange our car shuttle. We’ll drive up to mile 11.2 on Hwy. S22 and leave a set of cars at the Big Spring parking area. We’ll take the rest of the cars down to Hellhole Canyon and start our hike up to Culp Valley Camp. There will be a $10 parking fee for any vehicle parked at Hellhole Canyon if participants don’t have a State Park pass. From here\, we hike up the California Riding and Hiking Trail to the Culp Valley Campground Trail\, over a small pass\, and descend into Dry Canyon\, where we’ll pick up a faint social trail. The group will follow Rachel up a hill out of Dry Canyon and eventually pick up a trail that will take us back to the parking area on S22. This hike is approximately six miles with 2500′ of elevation gain\, and some steep sections to navigate. Long pants\, long sleeves\, and hiking poles are strongly recommended. Max. 12 people. Call the Nature Center to reserve.
URL:https://abdnha.org/activity/hike-california-riding-and-hiking-trail-part-2-strenuous/
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:20260120T080000
DTEND;TZID=America/Los_Angeles:20260120T160000
DTSTAMP:20260422T040402
CREATED:20251209T163218Z
LAST-MODIFIED:20251209T163844Z
UID:10000871-1768896000-1768924800@abdnha.org
SUMMARY:Hike: Crazycline Canyon Loop (Strenuous)
DESCRIPTION:Leaders: Carmelita Logerwell and Terri Straub\nHike: 5.0 miles\, 1000′ gain. A very rocky and interesting canyon. Plenty of rocks and dry waterfalls to go up\, over\, and around. Many synclines and anticlines\, hence the canyon’s name. High clearance vehicles recommended. Meet at ABDNHA by 7:50 a.m. Bring snacks/lunch\, water\, good hiking shoes\, and a good attitude. (Hike statistics subject to change based on group\, weather\, or other factors.)
URL:https://abdnha.org/activity/hike-crazycline-canyon-loop-strenuous/
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:20260120T090000
DTEND;TZID=America/Los_Angeles:20260120T120000
DTSTAMP:20260422T040402
CREATED:20251206T215744Z
LAST-MODIFIED:20251206T215744Z
UID:10000825-1768899600-1768910400@abdnha.org
SUMMARY:Nature Journaling in the Field (Easy)
DESCRIPTION:Leader: Pam Blake\, ABDNHA Volunteer \nCome practice nature journaling in the field with Pam Blake. Meet in the ABDNHA parking lot at 9:00 am and set out from there. You’ll need your own supplies and some familiarity with this practice\, as this session offers a chance for further nature journaling with a group but without instruction. No charge; call the Nature Center to reserve. This activity is repeated on the third Tuesday of each month.
URL:https://abdnha.org/activity/nature-journaling-in-the-field-easy/
LOCATION:ABDNHA Parking Lot\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:Journaling
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260120T180000
DTEND;TZID=America/Los_Angeles:20260120T193000
DTSTAMP:20260422T040402
CREATED:20260106T001937Z
LAST-MODIFIED:20260106T001937Z
UID:10000919-1768932000-1768937400@abdnha.org
SUMMARY:Lecture and Stargazing: Winter Star Clusters
DESCRIPTION:Speaker: Randolph Baron \nIn the winter our night sky is graced by the winter Milky Way and the sky is packed with beautiful star clusters. We will first talk about how these star clusters form and evolve and then head on out to look at some splendid examples. 30-minute lecture followed by stargazing in the ABDNHA garden. In the ABDNHA Library and ABDNHA garden. Registration required. General Public: $12\, Members: $10\, Volunteers: $8. Register online at abdnha.org or at the Nature Center\, 760-767-3098.
URL:https://abdnha.org/activity/lecture-and-stargazing-winter-star-clusters/
LOCATION:ABDNHA Library\, 652 Palm Canyon Drive\, Borrego Springs\, CA\, 92004\, United States
CATEGORIES:In-Person Lecture,Stargazing
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260122T080000
DTEND;TZID=America/Los_Angeles:20260122T140000
DTSTAMP:20260422T040402
CREATED:20251206T215744Z
LAST-MODIFIED:20251206T215744Z
UID:10000824-1769068800-1769090400@abdnha.org
SUMMARY:Birding Walk: Sonny Bono Refuge Visitor Center (Easy)
DESCRIPTION:Leaders: Tom Keffer and Lee Christie\, ABDNHA Volunteers \nSome of the best birding in our area. We will walk out to Rock Hill\, two miles round-trip\, with no elevation gain. We are likely to see Snow Goose (sometimes in the thousands)\, Shoveler\, Pintail\, Teal\, Dowitcher\, and Burrowing Owl. Travel time is 1 ¼ hours each way. Meet at ABDNHA by 7:50 a.m. Bring lunch/snacks\, binoculars\, and water. Call 760-767-3098 to reserve. Limit: 10.
URL:https://abdnha.org/activity/birding-walk-sonny-bono-refuge-visitor-center-easy/
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:20260123T100000
DTEND;TZID=America/Los_Angeles:20260123T120000
DTSTAMP:20260422T040402
CREATED:20251006T211319Z
LAST-MODIFIED:20251130T080102Z
UID:10000703-1769162400-1769169600@abdnha.org
SUMMARY:ABDNHA Friendly Friday Bike Ride
DESCRIPTION:Leader: Paul Petersen\, ABDNHA Volunteer. \nRelaxed social ride of 20-30 miles\, mostly flat\, at a 10-12 mph pace. Routes vary weekly\, and fun rides to highlight the roads less traveled. Return times vary depending on the chosen route. FREE\, every Friday. No registration required. Meet in the parking lot opposite the County Public Library.
URL:https://abdnha.org/activity/abdnha-friendly-friday-bike-ride/2026-01-23/
LOCATION:CA
CATEGORIES:Biking
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260123T183000
DTEND;TZID=America/Los_Angeles:20260123T193000
DTSTAMP:20260422T040402
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:20260124T084500
DTEND;TZID=America/Los_Angeles:20260124T123000
DTSTAMP:20260422T040402
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:20260124T183000
DTEND;TZID=America/Los_Angeles:20260124T193000
DTSTAMP:20260422T040402
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
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