Pacheco Valle Preserve

An undeveloped 519-acre refuge surrounding Pacheco Creek.

Rangers Recommend

  • Take Chicken Shack Fire Road (3.2 miles) for a steep uphill climb to Big Rock Ridge. Travel through classic oak woodlands that open to views of Mount Burdell and Mount Tam.
  • Rugged quarter-mile Pacheco Creek Trail leads to a lovely seasonal waterfall.
  • The preserve is adjacent to Loma Verde Preserve, Ignacio Valley Preserve, and Marinwood open space lands that comprise 3000 contiguous open space acres.
  • Trailheads at lower elevations connect through Marinwood via the Pacheco Multiuse Pathway.
  • Dogs are welcome. Dogs must be leashed on trail, and under voice command on fire roads, with leash readily available.

Naturalist Notes

  • Marin's tallest manzanita, Arctostaphylos manzanita, are abundant on some slopes..
  • See a variety of graceful old oaks here, including coast live oak, black oak, and valley oak.
  • This lightly travelled preserve provides habitat for coyote, deer, bobcat, and other wildlife.
  • Check out the iNaturalist field guide. Add your own observations.


dog on leash
Dogs On Leash
dog voice
Dogs Voice Control
Horseback Riding

Know Before You Go

  • Stay on roads and trails to preserve sensitive ecosystems and to avoid trespassing on private property.
  • Be courteous and safety conscious when sharing roads and trails. Go slow and say hello.
  • Dress appropriately for the weather. Trails can be muddy during rainy season.
  • Bring water.
  • There are no restrooms at this location.
  • Steer clear of poison oak.
  • After an outing, check for ticks.