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Pacheco Marsh Loop is a 2.8 mile lightly trafficked loop trail located near Martinez, California that offers the chance to see wildlife. The trail is good for all skill levels and is primarily used for hiking, walking, nature trips, and bird watching.

Distance: 2.8 miles Elevation Gain: 19 feet Route Type: Loop

kid friendly


nature trips


bird watching



Pacheco Marsh is a 122 acre parcel located adjacent to the mouth of Lower Walnut Creek. This site is a partnership of the Muir Heritage Land Trust, EBRPD and the Flood Control District. The partners’ goal for the site is to restore the degraded wetland habitat to historic tidal conditions and maximize habitat values while for allowing for compatible recreational uses. For more information visit:

bridge out
5 months ago

from the parking lot, it's well-groomed up to the fence. Where the trail appears to continue to the north towards the straight, it's been washed out and you can no longer make the loop. there's a little noise from the highway and a lot of heavy equipment sound from the place next door. Nobody else was on the trail but there's lots of little sparrows are finches in the underbrush.

Thu Feb 07 2019

Nothing here don’t go!

Sat Dec 09 2017

Deeply rutted dirt road. Not recommended after a rain storm.

Sun Nov 26 2017

Neat walking around Marsh- but had to bush whack as this trail map is old and some is non existent. Lots of no trespassing signs- not even sure if this is a park anymore. Don't go alone!

10 days ago

2 months ago

Sun Oct 28 2018