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.

Events for February 28, 2026

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Today

Hike: Exploring Coyote Canyon

ABDNHA Parking Lot 652 Palm Canyon Drive, Borrego Springs

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

ABDNHA Parking Lot 652 Palm Canyon Drive, Borrego Springs

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

ABDNHA Parking Lot 652 Palm Canyon Drive, Borrego Springs

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.

260228_Native American Plant Use

Lecture: Native American Life, Use of Native Plants

ABDNHA Library 652 Palm Canyon Drive, Borrego Springs

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.

ABDNHA Desert Lecture Series: Pursued by a Mountain Lion

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Borrego Springs Performing Arts Center 590 Palm Canyon Drive, Borrego Springs

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.

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