Round Valley Regional Preserve

Brentwood, Contra Costa County, CA

ParkingNo parking fee
Source
DogsNot allowed
Source
Hours8 a.m.; closing 5–8 p.m. by season
Source
Size
2,046 acres Source
Managed by
East Bay Regional Park District

About Round Valley Regional Preserve

A preserve near Brentwood, once home to California Indians, with trails and camping. Source

The area that is now Round Valley Regional Preserve was once home to California Indians. It was probably a boundary between several different tribal groups, an area where members of East Bay and San Joaquin Valley groups met periodically to trade and socialize. Evidence of Native American use has been uncovered at several archaeological sites within the valley.
— Round Valley Regional Preserve, official page (checked Oct 15, 2026)

Know before you go

Round Valley Regional Preserve covers 2,046 acres in Brentwood, Contra Costa County. 5 named trails add up to about 8.7 miles inside the park; the longest is Hardy Canyon Trail at 3 miles, and Hardy Canyon Trail has the most up and down (about 1,671 feet). Mapped trails range from 230 to 1,134 feet in elevation.

Facilities

  • Camping
  • Picnic Area
  • Restrooms

Facility details: OpenStreetMap

Round Valley Regional Preserve at a glance

WC
  • WCRestrooms · 1
  • Named trails · 5

© OpenStreetMap · CPAD · About this map

Trails

TrailMapped lengthElevationSurface & uses
Hardy Canyon Trail3 mi1,671 ft up & down230–1,088 ftUnpavedNo bikesHorses
Miwok Trail3 mi594 ft up & down261–493 ftUnpavedBikesHorses
Murphy Meadow Trail1.6 mi181 ft up & down381–501 ftUnpavedBikesHorses
Fox Trail0.8 mi196 ft up & down398–582 ftUnpavedBikesHorses
Eagle Ridge Trail0.3 mi200 ft up & down918–1,134 ft

How trail figures are measured

Compared with nearby parks

Among the 4 other parks in this guide within 10 miles, Round Valley Regional Preserve is number 3 of 5 by size at 2,046 acres. 3 nearby parks have more mapped trail mileage than its 8.7 miles.

Closest places for what Round Valley Regional Preserve doesn't list:

How comparisons work

Rules & reservations

Official park page
  • Dogs

    Dogs are not allowed because of sensitive wildlife habitat. Source

Gate hours change through the year; check the posted schedule.

Map & directions

19450 Marsh Creek Road, Brentwood, CA

1Location overview · map data © OpenStreetMap

37.858880, -121.764811Get directions

Nearby parks

Straight-line distance
Morgan Territory Regional Preserve4.2 miBlack Diamond Mines Regional Preserve8.4 miContra Loma Regional Park8.5 miSycamore Valley Open Space Regional Preserve10.1 miAntioch/Oakley Regional Shoreline11.0 mi

Continue exploring

Contra Costa County parks

Sources & verification

Last verified: Oct 15, 2026
  1. California Protected Areas Database (CPAD) 2026aname, county, agency, access, acres
  2. East Bay Regional Park District park pageofficial_url, hours, address, description, fees, dogs
  3. OpenStreetMap facilities and trailsfacilities.camping, facilities.picnic-area, facilities.restrooms, trails
  4. U.S. Census Bureau place boundaries (nearest place)city
  5. OpenStreetMap: parking, restrooms, water, trailheads, trail lines, and bus stopsvisit
  6. Terrain Tiles elevation (USGS 3DEP), sampled every 20 m along OpenStreetMap trail linestrails.elevation
  7. Official park page (introduction excerpt)intro
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