7 events found.
Please review our hiker info page to familiarize yourself with hiker safety rules and our hike ratings so that you can select hikes that meet your level of fitness. Unless specified otherwise in the activity descriptions below, hikes have a 15 person limit, and they begin in the ABDNHA parking lot.
Week of Events
Sunday, January 4, 2026
No events on this day.
Monday, January 5, 2026
No events on this day.
Tuesday, January 6, 2026
No events on this day.
Wednesday, January 7, 2026
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January 7, 2026 -Lecture: Life in the Borderlands – the History of Crossing the California-Mexico Border
Lecture: Life in the Borderlands – the History of Crossing the California-Mexico Border
Desert Lecture Series
Speaker: Immigration Historian Deborah Kang, Ph.D.
In the early 1900s, people freely crossed back and forth between California and Mexico because federal immigration laws were not strongly enforced, and the two sides were often regarded as parts of the same community. World War I and the Mexican Revolution led to this change, as strict regulations were imposed amid growing concerns about foreign enemies and immigrants. Residents in the borderlands strongly objected because they relied upon easy crossings for their society, family ties, and economy. Their objections led to enforcement being relaxed once again. Our speaker tonight, Deborah Kang, is an immigration historian who will explain the evolution of laws and practices along the California-Mexico border, from around 1900 to the present day. Join us at the Borrego Springs Performing Arts Center. The program is free for ABDNHA members, and $10 at the door for the general public. Seating is first-come, first-served.
Thursday, January 8, 2026
No events on this day.
Friday, January 9, 2026
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January 9, 2026 -Lecture: The Story of the Salton Sea – FULL
Lecture: The Story of the Salton Sea – FULL
THIS PROGRAM IS FULL.
Speaker: Dave Blanchet, (ret.) Hydrologist
First 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.
$8.00 – $12.00
Saturday, January 10, 2026
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January 10, 2026 -Astronomy Lecture: Fossils of the Solar System
Astronomy Lecture: Fossils of the Solar System
Speaker: Dr. Neil Farber
Just as fossils on Earth are remnants of past life forms, there are astronomical fossils in space dating back to the early days of the Solar System that may provide insights into how the Solar System and life itself originated. NASA is conducting a multitude of missions to study asteroids, aiming to enhance our understanding of the Solar System and explore ways to mitigate the threats posed by potential collisions with Earth. General Public: $12, Members: $10, Volunteers: $8. You can register online at www.abdnhaorg or at the Nature Center, 760-767-3098. Held in the ABDNHA Library.
$8.00 – $12.00