Hikes & Events

hikes and events Hike Schedule


trail information Read morePhoto: Susan Myrland


Los Peñasquitos Ranch House Read more

Giving Tuesday
Nov 27

Give to Save Our Oaks

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Miner’s Loop Trail Reopens

As of the week of 4/16/18 the Miner’s Loop Trail at Black Mtn. Open Space Park is reopened for hiking. The trail was closed for many months due to the possible presence of arsenic in soils along parts of the trail. After much research and testing it was determined there is no danger from arsenic contamination of the soil due to the presence of the nearby Arsenic/Gold mine of the 1920s. Enjoy this very scenic trail.
— Mike Kelly Secretary & Conservation Chair (Also member of the Citizens Advisory Committee for Black Mountain Open Space Park).

NEW BOOK: Pieces of History: Prehistory & History of Rancho Peñasquitos

This recently published book compiles the archaeological and historical reports based on more than 20 years of archaeological digs and investigations at Rancho Santa Maria de los Peñasquitos by three archaeologists (Steve Bouscaren, PhD; Susan Hector, PhD; and Lynne Christenson Newall, PhD.) and one historian (Steve Van Wormer, MS). Read more along with purchase details.

Lake Hodges Oakland Restoration

The Del Dios Habitat Protection League (DDHPL) is a group of local volunteers who are working to restore the native riparian habitat of Lake Hodges. Learn More about who we are and what we do, along with current projects, events and news.

Historic Adobe Ranch Tour

San Diego County Park docents lead a free guided tour of San Diego’s second oldest standing residence, Ranch Santa Maria de Los Peñasquitos at 11 a.m. on Saturdays and 1 p.m. on Sundays, lasting 45 minutes. See an historic Mexican era rancho with three foot thick adobe walls, settler and Indian artifacts and tour the grounds. The Ranch House is located on Canyonside Drive off Black Mountain Road near I-15 between Mira Mesa and Rancho Peñasquitos. See Thomas Bros. p. 1189 (C7)

About us

The Friends of Los Peñasquitos Canyon Preserve is a volunteer organization which has been protecting the preserve for more than 25 years. The Friends assist the city and county rangers through such activities as leading interpretive walks, performing wildlife and other scientific studies, removing invasive exotics and replanting with natives, installing kiosks, and coordinating Scout projects. Past scout projects have included building small bridges, installing interpretive signs, building and installing owl boxes, and restoring trails. The Board meets bi-monthly and welcomes new volunteers in any capacity.



There are many ways you can help care for your local nature preserves including Los Peñasquitos Canyon Preserve, Carmel Mountain, the Del Mar Mesa, and Black Mountain Parks.   Restoration Work Projects, Endangered Plant Surveys, Wildlife Surveys, Trail Building & Maintenance are among the many possible ways to volunteer.

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Links to local environmental groups, project reports, plant and animal lists.



Tracking Team

The Los Penasqusitos Tracking Team offers a number of classes in the art of wildlife tracking and naturalist skills development.

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Videos of nature conservation and outdoor recreation.

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