The Friends have joined the opposition to this proposed project.

A 30 year journey of working to save a Federally and State listed endangered plant, in the Preserve and elsewhere in the County

Join the Friends of los Peñasquitos Canyon Preserve in surveying for and documenting the location of Monarch Butterflies, their caterpillars, and the milkweed plants they need.

Monarch populations have crashed all over the country. The decline of our Western populations has been dramatic according to recent surveys. This is a national effort from July 23 – August 1, 2021.

Hello all, as we did last year due to the heat, we’re pushing our start time to 3 PM. Dates for the coming 3 months are posted on our Event Calendar, our IG and Facebook pages.

Please notice that from Tuesday 4th to Friday 7th some sections of the trails in the Preserve will be closed. Volunteers and park rangers will be on location from 67 AM to 1 PM while pesticide application takes place

This year the Coast to Crest Trail Challenge will include Lusardi Creek and Awhee Trail, on the west side of Black Mountain Open Space Park.

This has been an exceptional season for natives, thanks to the late rains. I have been walking up Black Mountain via Sundevil and the Manzanita loop quite a bit and I was really struck by the display of Canchalagua (Centaurium venustum).

Please notice that Tuesday 9th and Wednesday 10th some sections of the trails in the Preserve will be closed. Volunteers and park rangers will be on location from 7 AM to 3 PM while pesticide application takes place

In the canyons of Los Penasquitos Preserve, a uniquely social species of woodpecker thrives. They are the Acorn Woodpeckers, named after their diet of acorns. They utilize a communal granary or acorn tree to store or cache their live oak acorns from season to season. Being skillful at drilling holes is one of their gifts.

Hello friends, due to the Coronavirus the Friends are reluctantly canceling all hikes and restoration events through June 15. We won’t publish our new events calendar until the virus emergency has passed. Meanwhile, enjoy the trails with your family, but keep the appropriate distance, about 6’, from other people.