Briones Regional Park
Lafayette, Contra Costa County, CA
- Size
- 5,965 acres Source
- Managed by
- East Bay Regional Park District
About Briones Regional Park
Rolling hills and shady canyons in central Contra Costa County with archery, camping, and long trails. Source
The Briones Special Management Area is a 1,600 acre zone in the northeast part of Briones Regional Park that employs a variety of trail management strategies to protect habitat, wildlife, and watersheds. The Special Management Area establishes specific rules limiting trail use, such as hiking only, biking only, or hiking/biking only and direction of travel.
Facilities
- Camping
- Drinking Water
- Picnic Area
- Restrooms
Facility details: OpenStreetMap
Sunrise & sunset
Briones Regional Park hours follow the sun (8 a.m.; closing 5–8 p.m. by season). Mid-month times for this location:
| Month | Sunrise | Sunset |
|---|---|---|
| Jan | 7:23 a.m. | 5:11 p.m. |
| Feb | 6:59 a.m. | 5:45 p.m. |
| Mar | 7:21 a.m. | 7:14 p.m. |
| Apr | 6:34 a.m. | 7:43 p.m. |
| May | 5:58 a.m. | 8:10 p.m. |
| Jun | 5:45 a.m. | 8:31 p.m. |
| Jul | 5:57 a.m. | 8:31 p.m. |
| Aug | 6:23 a.m. | 8:03 p.m. |
| Sep | 6:49 a.m. | 7:18 p.m. |
| Oct | 7:15 a.m. | 6:32 p.m. |
| Nov | 6:48 a.m. | 4:58 p.m. |
| Dec | 7:16 a.m. | 4:50 p.m. |
Calculated from the park's coordinates (NOAA solar equations), Pacific time.
Briones Regional Park at a glance
- PParking · 6
- WCRestrooms · 7
- WDrinking water · 7
- Named trails · 12
Outline: CPAD. Points and trail lines: OpenStreetMap contributors. Not for navigation.
Trails
| Trail | Mapped length | Elevation | Surface & uses |
|---|---|---|---|
| Briones Crest Trail | 6.2 mi | 2,623 ft up & down654–1,456 ft | UnpavedBikesHorses |
| Service Road | 5.6 mi | 2,668 ft up & down407–1,232 ft | UnpavedBikesNo horsesNo bikesHorses |
| Spengler Trail | 4 mi | 2,301 ft up & down603–1,336 ft | UnpavedBikesHorses |
| Lafayette Ridge Trail | 3.3 mi | 937 ft up & down951–1,270 ft | UnpavedBikesHorses |
| Old Briones Road Trail | 2.4 mi | 776 ft up & down764–1,231 ft | UnpavedBikesHorses |
| Abrigo Valley Trail | 2 mi | 624 ft up & down693–1,238 ft | UnpavedBikesHorses |
| Lagoon Trail | 1.8 mi | 1,020 ft up & down791–1,358 ft | UnpavedBikesHorses |
| Seaborg Trail | 1.5 mi | 603 ft up & down672–1,194 ft | UnpavedBikesHorses |
| Mariposa Trail | 1.4 mi | 600 ft up & down834–1,262 ft | BikesHorses |
| Crescent Ridge Trail | 1.4 mi | 685 ft up & down809–1,386 ft | UnpavedBikesHorses |
| Blue Oak Trail | 1.4 mi | 758 ft up & down306–747 ft | UnpavedBikesHorses |
| Deer Creek Trail | 1.4 mi | 471 ft up & down686–1,152 ft | UnpavedBikesHorsesNo bikesNo horses |
Trail names and mapped lengths come from OpenStreetMap; lengths count only the part inside the park boundary. Up-and-down totals (climbing plus descent, one way) and elevation ranges are estimates from USGS 3DEP elevation (about 15 m grid) sampled along the mapped line. Use the official guide map for the route and current closures.
Rules & reservations
Official park page- Dogs
Dogs must be leashed in parking lots, picnic areas, lawns, and other developed areas, and may be off leash under control in undeveloped open space (district rules). Source
Alhambra and Bear Creek entrances. Gate hours change through the year; check the posted schedule. Parking lots: 8 a.m. to sunset.
Map & directions
Alhambra Staging Area, Brookwood Dr, Martinez, CA
Nearby parks
Straight-line distanceContinue exploring
Contra Costa County parksSources & verification
Last verified: Oct 15, 2026- California Protected Areas Database (CPAD) 2026aname, county, agency, access, acres
- East Bay Regional Park District dog rulesdogs
- East Bay Regional Park District park pageofficial_url, hours, address, description, fees
- OpenStreetMap facilities and trailsfacilities.camping, facilities.drinking-water, facilities.picnic-area, facilities.restrooms, trails
- U.S. Census Bureau place boundaries (nearest place)city
- OpenStreetMap: parking, restrooms, water, trailheads, trail lines, and bus stopsvisit
- Terrain Tiles elevation (USGS 3DEP), sampled every 20 m along OpenStreetMap trail linestrails.elevation
- Official park page (introduction excerpt)intro