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.

In-Person Lecture

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Today

  • Lecture: Dudleya, California’s Unique Succulent

    ABDNHA Library 652 Palm Canyon Drive, Borrego Springs, CA, United States

    Speaker: Jeff Moore, Author, Owner of Solana Succulents 
    Dudleya are beautiful succulents native to California, with some occurrences in northern Baja, Mexico, and Oregon. Jeff’s presentation will cover most of the currently described species in California and Baja, following the flow of his new book, co-written with Jeremy Spath and Kelly Griffin.

    Dudleya are found in some of the most stunning locations along the California coast—complete with cliffside backdrops and vast ocean vistas, and their photographs are breathtaking, as Jeff will share during the presentation. Jeff first became interested in Dudleya when he saw some at the San Diego County Fair in the early 1980s. He began selling them in his spare time, which eventually led to the opening of Solana Succulents in 1992. GP $12, M $10, V $8. Register online or at the Nature Center by calling 760-767-3098.

    Register here for the program.

  • Lecture: What’s Up with the Hawkwatch?

    ABDNHA Library 652 Palm Canyon Drive, Borrego Springs, CA, United States

    Speakers: Tracee Geernaert and Candice Hess, Hawkwatch Leaders
    Come to the ABDNHA Library to see and hear what’s new in 2026 for the Swainson’s Hawkwatch. Hear about peak counts, which occur mid-March, and we are hoping for a great year. Our early bloom bodes well for lots of insects, also known as “hawk food.” We will bring photos, anecdotes, and lots of laughs from the field!

    The Hawkwatch update will also include a talk by visiting wildlife biologist Lizzi Weisman who is part of one of the longest-running raptor studies in North America, the Butte Valley Swainson’s Hawk project. She will discuss their study of the ecology of Swainsons hawks in Butte Valley to determine how their reproductive success is related to the quality of the habitat they choose for their nests. Register online or call 760-767-3098. GP $12, M $10, V $8.

    Register here for the program.

  • Lecture: Burrowing Owls Acoustic Research

    ABDNHA Library 652 Palm Canyon Drive, Borrego Springs, CA, United States

    Speaker: Samantha Lima, Ph.D.
    Sam is a postdoc at the San Diego Zoo Wildlife Alliance, where she conducts research on burrowing owls. Tonight, she will introduce bioacoustics and its application in species monitoring and explain the work of SDZWA to monitor these charismatic birds using passive acoustic methods. Additionally, she will include a demonstration of the equipment and engage in discussions about acoustic fieldwork. GP $12, M $10, V $8. Register online or at the Nature Center, 760-767-3098.

    Register here for the program.

  • Talk & Walk: Plants of Anza-Borrego – CANCELLED

    ABDNHA Parking Lot 652 Palm Canyon Drive, Borrego Springs, CA, United States

    Leader: Don Rideout, Coordinator, Desert Botany Club
    *** THIS PROGRAM IS CANCELLED DUE TO EXTREME HEAT ***

    Short Lecture and Field Trip (Easy walk, okay for all vehicles)

    An offering of the new Botany Club, these walks will focus on the plants of Anza-Borrego Desert, with locations varying depending on where we find the most interesting plants. Our pace will be generally slow, allowing plenty of time for plant identification, questions, discussion, and photography.  All levels of knowledge are welcome, including children. Meet at ABDNHA; carpool as best we can, as we head to the field trip site. No Charge. Space is limited. Register at the Nature Center or call 760-767-3098.

  • Program: The Trail Less Traveled – Baja

    ABDNHA Library 652 Palm Canyon Drive, Borrego Springs, CA, United States

    Speaker: Alan Ehrgott

    Author Alan Ehrgott’s (The Elusive Conquest of Queen Califa) fascination with Baja started in the 1970s when he hiked the entire 1050 mile length of the peninsula, following a mix of the Camino Real, the old route established by the Spanish that led from mission to mission, as well as the far more rugged route through Baja’s mountains, where isolated ranches continue to exist today. While things are far more developed along the heavily travelled Mexico Highway 1, life in the isolated ranches have changed far less. In his presentation, Alan shows parts of his original journey, and tells the story of the natural and cultural history of Baja, including the existential conflict between native tribes, Spanish conquistadors and Jesuit Priests, and he highlights points of interest such as the UNESCO Indigenous giant rock murals in the Sierra San Francisco. In the ABDNHA library. Register online or call 760-767-3098. GP $12, M $10, V $8.

    Register here for the program.

  • ABDNHA Desert Lecture Series: Bobcats in the Neighborhood

    Featured
    Borrego Springs Performing Arts Center 590 Palm Canyon Drive, Borrego Springs, CA, United States

    Speaker: Andy Blue
    Andy Blue discusses a fascinating animal, the bobcat, found both in the wild and in our semi-rural community of Borrego Springs. Although bobcats are more numerous than many realize, they are more secretive than their fellow upper-tier predator, the coyote.

    Andy has been a powerhouse in the zoological community for many years, working in Russia, Ukraine, Iraq, Cuba, Southeast Asia, and Latin America. He started at the San Diego Zoo Safari Park at age 16 and became a curator. He has served as Zoological Manager at Disney’s Animal Kingdom and as director of the Ramona Wildlife Center. Currently, he is the Campus Director at the San Diego Humane Society. The highlight of his job is returning rehabilitated animals to the wild. General Public: $10 at the door; Members: no charge. Seating is first-come, first-served.

  • Botany Club Meeting

    ABDNHA Library 652 Palm Canyon Drive, Borrego Springs, CA, United States

    Leader: Don Rideout

    Since it is too darn hot to hike, let's have an indoor meeting. Don will give a Powerpoint talk about desert lilies including updates from this season.

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