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, February 22, 2026
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February 22, 2026 -Stargazing: Cosmic Gems of the Late Winter Sky
Stargazing: Cosmic Gems of the Late Winter Sky
Speaker: Dr. Randolph Baron
The seasons change, and so do the stars above. Tonight, we will talk about and then look at several different kinds of astronomical objects, from nebulae thousands of light-years away to galaxies millions of light-years away! We will first have a lecture on tonight’s targets in the sky, then go outside to have a look through the telescopes. GP $12, M $10, V $8. Register online, visit, or call us at 760-767-3098.
Register here for the program.
Monday, February 23, 2026
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February 23, 2026 -Hike: West Butte (Moderately Strenuous)
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February 23, 2026 -Hike: Blake Hill Loop (Very Strenuous) – FULL (waitlist)
Hike: West Butte (Moderately Strenuous)
Leader: Rachel Rench, ABDNHA Volunteer
Meet at the ABDNHA parking lot at 8 a.m. to drive to the slot parking area. This area has a day-use fee, so we'll try to take as few cars as possible. Starting out from the parking area, we'll follow the ridge and climb up to West Butte to admire the view of the Santa Rosa Mountains, the Salton Sea, and the Vallecito Mountains. We backtrack a bit after the summit and follow an informal trail down to Borrego Mountain Wash. We'll follow the wash to the bottom of The Slot and climb up to the parking area to finish our outing. Expect a 5-mile hike with 700 ft of elevation gain and loss. This trip will be limited to 15 people. Call 760-767-3098 to reserve.
Hike: Blake Hill Loop (Very Strenuous) – FULL (waitlist)
Leader: Robin Halford
Hike is FULL - please call ABDNHA at 760-767-3098 to get on waitlist
Blake Hill is one of the few named entities in the Mecca wilderness and an area where desert tortoises might be found. The first part of the hike includes a wash, a slot canyon, and a very steep 0.1-mile climb up to a ridge. Then there is a descent on an abandoned jeep road, followed by a walk on Box Canyon Road to the cars. The total hike distance is 6.3 miles (loop). Expect lots of uneven ground, some of it rocky. There is no bouldering, but there are some uneven, steep sections on the ridge. Sturdy shoes recommended. Bring snack/lunch, electrolytes, water, and poles. Limit 10. Driving instructions: 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 11.3 miles, and park on the left side of Box Canyon Road. We will meet here. The road is usually OK for 2WD with high clearance. Call 760-767-3098 or visit the Nature Center.
Tuesday, February 24, 2026
No events on this day.
Wednesday, February 25, 2026
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February 25, 2026 -Borrego Rock & Gem Club (BRAG) Meeting
Borrego Rock & Gem Club (BRAG) Meeting
Like rocks? Join BRAG and meet other rockhounds!
The BRAG club meets every 4th Wed of the month in the Activity Room.
Note: In Nov & Dec, the meeting is on the 3rd Wed due to holidays.
Thursday, February 26, 2026
No events on this day.
Friday, February 27, 2026
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February 27, 2026 -ABDNHA Friendly Friday Bike Ride
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February 27, 2026 -Lecture: Beauty of the Universe – The Astrophotography of Michael Scott Poirier
ABDNHA Friendly Friday Bike Ride
Leader: Paul Petersen, ABDNHA Volunteer. Relaxed 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.
Lecture: Beauty of the Universe – The Astrophotography of Michael Scott Poirier
Speaker: Michael Poirier
Michael Poirier’s presentation will include many images of galaxies, nebulae, planets, and other celestial objects taken from his observatory in Borrego Springs and other locations in Southern California. He will also give a brief explanation on how he captures and processes these images.
Michael says he still doesn’t know what he wants to be when he grows up. Educated in the U.S. and Switzerland, he served as a commissioned officer in the United States Navy before embarking on a successful career as a biotech executive and entrepreneur. Through it all, he has always been interested in astronomy. “My interest in astronomy began when I was a teenager. One night, I looked up at the stars through binoculars and noticed that one was a large, fuzzy blob. Later, I found out that it was the Andromeda Galaxy. Ever since then, I have become passionate about it and have focused on astrophotography.” GP $12, M $10, V $8. Register online or at the Nature Center, 760-767-3098.
Register here for the program.
Saturday, February 28, 2026
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February 28, 2026 -Hike: Exploring Coyote Canyon
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February 28, 2026 -4WD Field Trip: Ancient Lake Cahuilla
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February 28, 2026 -Around Town Photo Walk
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February 28, 2026 -Lecture: Native American Life, Use of Native Plants
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Featured February 28, 2026 -Featured ABDNHA Desert Lecture Series: Pursued by a Mountain Lion
Hike: Exploring Coyote Canyon
Leader: Marlin Burke, Naturalist Volunteer
We 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.
4WD Field Trip: Ancient Lake Cahuilla
Special Earth Science Series!
Leader: John Peterson, Hydrologist and Geologist
Approximately 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.
Register here for the field trip.
Around Town Photo Walk
Leader: Professional Photographer Sandy Zelasko
Join Sandy Zelasko, for this casual walk around town as she and the group find interesting subject matter and photograph it in different ways. This is open to all experience levels and all levels of equipment, including smartphone cameras. Meet at ABDNHA. No charge, but registration is required. Call 760-767-3098 or visit the Nature Center.
Lecture: Native American Life, Use of Native Plants
Speaker: Cathy Chambers, Volunteer
Many hundreds of years ago, there was nothing close to a store in all of North America. The people living here before that time needed materials for clothing, storage containers, food, tools, and other essentials to build living structures. All of these materials were gathered and processed into the items they needed. Groups traded with each other for what they needed, offering what they had in surplus in exchange. In this presentation, you will see and handle samples of plants and the objects made from them that were used in everyday life in the surrounding desert. Cathy Chambers is a lifelong naturalist who studied ethnobotany for her personal and professional development, starting her career decades ago here in Anza-Borrego. GP $12, M $10, V $8. You can register online or at the Nature Center, 760-767-3098.
Register here for the program.
Featured
ABDNHA Desert Lecture Series: Pursued by a Mountain Lion
Speaker: James W. Cornett, Desert Ecologist, Author
While hiking alone in the Baboquivari Mountains of southern Arizona, Jim Cornett came face to face with a mountain lion that had stalked him down a mountainside. The confrontation lasted nearly forty-five minutes, with the cougar lunging at Jim several times, in an attempt to get him to turn and run. Join Jim as he recounts the frightening experience and explains what he did right and what he did wrong in his encounter with the largest of resident American felines. Along the way, Jim will describe the natural history of mountain lions, the threat they pose to humans (real and imagined), and their future in an increasingly urban world. Free for ABDNHA members, all others $10 at the door of the Performing Arts Center. Seating is first-come, first-served.