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DTSTART;TZID=America/Los_Angeles:20260120T180000
DTEND;TZID=America/Los_Angeles:20260120T193000
DTSTAMP:20260106T001937Z
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
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DTSTART;TZID=America/Los_Angeles:20260123T183000
DTEND;TZID=America/Los_Angeles:20260123T193000
DTSTAMP:20260119T014131Z
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
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DTSTART;TZID=America/Los_Angeles:20260124T183000
DTEND;TZID=America/Los_Angeles:20260124T193000
DTSTAMP:20260120T182142Z
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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