Las Trampas Wilderness Regional Preserve
Danville, Contra Costa County, CA
Hours8 a.m.; closing 5:30–8 p.m. by season
Source- Size
- 4,102 acres Source
- Managed by
- East Bay Regional Park District
About Las Trampas Wilderness Regional Preserve
Over 6,000 acres of rugged wilderness near San Ramon for hiking and horseback riding. Source
Las Trampas Wilderness Regional Preserve offers 6,050 acres of wilderness and an expanded trail system that allows hikers and horseback riders to enjoy its remote and rugged areas. The park's size and terrain allow visitors a feeling of privacy and escape from urban hustle and bustle. Carry plenty of drinking water for yourself, your dog(s), and your horse(s) when visiting the park.
Facilities
- Camping
- Drinking Water
- Picnic Area
- Restrooms
Facility details: OpenStreetMap
Las Trampas Wilderness Regional Preserve at a glance
- PParking · 5: Elderberry/Little Hills Ranch Parking (40 spaces), Ringtail Cat Staging Area
- WCRestrooms · 2
- WDrinking water · 2
- Named trails · 12
Outline: CPAD. Points and trail lines: OpenStreetMap contributors. Not for navigation.
Trails
| Trail | Mapped length | Elevation | Surface & uses |
|---|---|---|---|
| Madrone Trail | 4.1 mi | 1,614 ft up & down623–1,280 ft | UnpavedBikesHorses |
| Bollinger Creek Loop Trail | 2.6 mi | 1,096 ft up & down1,022–1,760 ft | UnpavedNo bikesHorses |
| Las Trampas Ridge & Calaveras Ridge Trail | 2.6 mi | 1,256 ft up & down1,280–1,799 ft | UnpavedBikesHorsesNo bikes |
| Elderberry Trail | 2.2 mi | 984 ft up & down985–1,717 ft | Unpaved |
| Las Trampas Ridge / Calaveras Ridge Trail | 1.5 mi | 560 ft up & down1,501–1,725 ft | BikesHorses |
| Cuesta Trail | 1.4 mi | 542 ft up & down1,547–1,899 ft | UnpavedHorses |
| Ridge View Trail | 1.3 mi | 467 ft up & down1,707–1,964 ft | UnpavedBikesHorses |
| Devil's Hole Trail | 1.3 mi | 897 ft up & down882–1,893 ft | Unpaved |
| Sycamore Trail | 1 mi | 905 ft up & down1,054–1,912 ft | Unpaved |
| Virgil Williams Trail | 1 mi | 599 ft up & down515–1,022 ft | UnpavedNo bikesHorses |
| Lower Vortex | 1 mi | 642 ft up & down460–1,130 ft | Unpaved |
| Corduroy Hills Trail | 0.9 mi | 606 ft up & down1,344–1,760 ft | UnpavedNo 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 pageGate hours change through the year; check the posted schedule.
Map & directions
18012 Bollinger Canyon Road, San Ramon, CA 94583
37.814655, -122.043489Get directions
Nearby parks
Straight-line distanceDiablo Foothills Regional ParkWalnut Creek · 5.4 mi · Drinking Water, Historic SiteSycamore Valley Open Space Regional PreserveDanville · 5.7 miBishop Ranch Open Space Regional PreserveSan Ramon · 5.7 miHuckleberry Botanic Regional PreserveOakland · 8.2 mi · Drinking Water, Picnic AreaSibley Volcanic Regional PreserveOakland · 9.0 mi · Camping, Drinking Water
Continue 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 park pageofficial_url, hours, address, description
- 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