Diablo Foothills Regional Park (East Bay Regional Park District)
Photo MARELBU · CC BY 3.0

Diablo Foothills Regional Park

Walnut Creek, Contra Costa County, CA

ParkingNo parking fee
Source
DogsLeash in developed areas
Source
Hours5 a.m. to 10 p.m.
Source
Diablo Foothills Regional Park (East Bay Regional Park District)
Photo MARELBU · CC BY 3.0
Size
950 acres Source
Managed by
East Bay Regional Park District

About Diablo Foothills Regional Park

Rock formations and Bay Area views at the gateway to Mount Diablo State Park. Source

Diablo Foothills is an imposing gateway to the beautiful parklands of Mt Diablo State Park and Walnut Creek Open Space. The Foothills 1,060 acres are valued for their striking geologic formations, their sweeping panoramas of the San Francisco Bay Region and the rural quality of the adjacent rolling grasslands.
— Diablo Foothills Regional Park, official page (checked Oct 15, 2026)

Know before you go

Diablo Foothills Regional Park covers 950 acres in Walnut Creek, Contra Costa County. 12 named trails add up to about 6.4 miles inside the park; the longest is Briones to Mt. Diablo Regional Trail at 1.3 miles, and Briones to Mt. Diablo Regional Trail has the most up and down (about 444 feet). Mapped trails range from 284 to 869 feet in elevation. OpenStreetMap shows 3 parking areas, including Livorna Staging Area and Orchard Staging Area, plus 5 restrooms and 1 drinking fountain.

Facilities

  • Drinking Water
  • Historic Site
  • Picnic Area
  • Restrooms
  • Volleyball

Facility details: OpenStreetMap

Diablo Foothills Regional Park at a glance

PPPWCWCWCWCWCW
  • PParking · 3: Livorna Staging Area, Orchard Staging Area
  • WCRestrooms · 5
  • WDrinking water · 1
  • Named trails · 12

© OpenStreetMap · CPAD · About this map

Trails

TrailMapped lengthElevationSurface & uses
Briones to Mt. Diablo Regional Trail1.3 mi444 ft up & down658–869 ftUnpavedBikesHorses
Foothills Trail0.8 mi343 ft up & down532–675 ftUnpavedBikesHorses
Shell Ridge Trail0.6 mi309 ft up & down538–857 ft
Buckeye Ravine Trail0.6 mi433 ft up & down447–752 ftUnpaved
North Gate Trail0.6 mi98 ft up & down284–375 ftUnpaved
Fairy Lantern Trail0.5 mi217 ft up & down438–668 ftBikesNo horsesNo bikes
Stage Road0.5 mi74 ft up & down376–476 ftUnpavedBikesHorses
Shell Ridge Loop Trail0.4 mi202 ft up & down584–815 ft
Borges Ranch Trail0.3 mi98 ft up & down609–704 ftUnpaved
Sugarloaf-Shell Ridge Trail0.3 mi181 ft up & down435–592 ftUnpavedBikesHorses
Stonegate Trail0.3 mi93 ft up & down642–744 ftUnpaved
Shell Ridge Loop connector trail0.2 mi49 ft up & down693–745 ftUnpaved

How trail figures are measured

Compared with nearby parks

Among the 6 other parks in this guide within 10 miles, Diablo Foothills Regional Park is number 5 of 7 by size at 950 acres. 4 nearby parks have more mapped trail mileage than its 6.4 miles.

Closest places for what Diablo Foothills Regional Park doesn't list:

How comparisons work

Rules & reservations

Official park page
  • Dogs

    At Diablo Foothills Regional Park: leash in developed areas, under the East Bay Regional Park District dog rules. Source

  • Castle Rock Pool

    The pool complex will reopen for the swim season in 2027. Source

Parking lot opens 7:30 a.m. and closes 7–9 p.m. by season.

Map & directions

1700 Castle Rock Road, Walnut Creek, CA 94598

1Location overview · map data © OpenStreetMap

37.883803, -121.996449Get directions

Nearby parks

Straight-line distance

Sources & verification

Last verified: Oct 15, 2026
  1. California Protected Areas Database (CPAD) 2026aname, county, agency, access, acres
  2. East Bay Regional Park District dog rulesdogs
  3. East Bay Regional Park District park pageofficial_url, hours, address, description, fees
  4. OpenStreetMap facilities and trailsfacilities.drinking-water, facilities.historic-site, facilities.picnic-area, facilities.restrooms, facilities.volleyball, trails
  5. U.S. Census Bureau place boundaries (nearest place)city
  6. OpenStreetMap: parking, restrooms, water, trailheads, trail lines, and bus stopsvisit
  7. Terrain Tiles elevation (USGS 3DEP), sampled every 20 m along OpenStreetMap trail linestrails.elevation
  8. Official park page (introduction excerpt)intro
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Diablo Foothills Regional Park · Photo MARELBU · CC BY 3.0