Ignacio Valley Preserve

A 906-acre expanse of rugged woodland and chaparral.

Rangers Recommend

  • Find peace and solitude here–it's one of the least visited Marin County open space preserves.
  • Travel steep slopes to Big Rock Ridge for top-of-the-world views. Dramatic elevation changes will give you a good workout.
  • After heavy rains, enjoy the cascades over 30-foot Buck Gulch Falls.
  • Travel through to Loma Verde, Pacheco Valle, and Indian Valley preserves as well as other adjacent public lands. These contiguous band of undisturbed open space encompass virtually the entire northern slope of eastern Big Rock Ridge.
  • Dogs are welcome. Dogs must be leashed on trail, and under voice command on fire roads, with leash readily available.

Naturalist Notes

  • See massive manzanitas, as well as coast live oak, madrone, black oak, and California bay trees.
  • Sandstone slopes with madrone groves are prime habitat for cedar waxwings, band tailed pigeons, hermit thrushes, and American robins. They feast on madrone berries in winter.
  • Deep canyons and wild woodlands shelter thriving populations of wildlife. Coyotes and foxes enjoy the manzanita berries that ripen in fall.


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.
  • Watch your footing on steep slopes.
  • There are no restrooms at this location.
  • Steer clear of poison oak.
  • After an outing, check for ticks.