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.

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Events at this venue

Today

  • Webinar: Geology of San Diego County’s Peninsular Ranges – POSTPONED

    Zoom
    Virtual Event

    This presentation is postponed to a later date.  The new date will be posted here as soon as possible

    Speaker: Geologist Don Barrie
    Please join Mesa College geology professor and ABDNHA board member, Don Barrie, for his repeat 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. GP $12, M $10, V $8 (per connection).

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