Contra Loma Regional Park
Antioch, Contra Costa County, CA
- Size
- 681 acres Source
- Swimming
- Swim lagoon closed Source
- Managed by
- East Bay Regional Park District
About Contra Loma Regional Park
An Antioch park built around an 80-acre reservoir with year-round fishing, hiking, and biking. Source
To reach Contra Loma from Highway 4 in Antioch, exit on Lone Tree Way, go right on Golf Course Road and right on Frederickson Lane to the park.
Know before you go
Contra Loma Regional Park covers 681 acres in Antioch, Contra Costa County. 5 named trails add up to about 5.3 miles inside the park; the longest is Old Ranch Loop Trail at 2.3 miles, and Old Ranch Loop Trail has the most up and down (about 396 feet). Mapped trails range from 128 to 452 feet in elevation. OpenStreetMap shows 6 parking areas, plus 2 restrooms. The closest mapped bus stop is James Donlon Boulevard & G Street (routes 390), about 450 feet from the park.
Facilities
- Boat Launch
- Picnic Area
- Restrooms
- Volleyball
Facility details: OpenStreetMap
Contra Loma Regional Park at a glance
- PParking · 6
- WCRestrooms · 2
- Named trails · 5
© OpenStreetMap · CPAD · About this map
Trails
| Trail | Mapped length | Elevation | Surface & uses |
|---|---|---|---|
| Old Ranch Loop Trail | 2.3 mi | 396 ft up & down128–231 ft | Unpaved |
| West Shore Trail | 1.5 mi | 117 ft up & down209–229 ft | Unpaved |
| Los Charros Trail | 0.6 mi | 38 ft up & down192–218 ft | Unpaved |
| East Shore Trail | 0.5 mi | 27 ft up & down208–222 ft | Unpaved |
| Old Homestead Loop Trail | 0.4 mi | 123 ft up & down351–452 ft | UnpavedBikesHorses |
Getting to Contra Loma Regional Park by bus
- James Donlon Boulevard & G Street · Routes 390 · 450 ft from the park
- James Donlon Boulevard & South Royal Links Circle · Routes 390 · 590 ft from the park
- James Donlon Boulevard & Contra Loma Boulevard · Routes 390 · 730 ft from the park
- James Donlon Boulevard & Community Park · Routes 390 · 760 ft from the park
Stops within a quarter mile of Contra Loma Regional Park; confirm times with the transit agency.
Compared with nearby parks
Among the 6 other parks in this guide within 10 miles, Contra Loma Regional Park is number 5 of 7 by size at 681 acres. 3 nearby parks have more mapped trail mileage than its 5.3 miles. It is the only one of them with boat Launch.
Closest places for what Contra Loma Regional Park doesn't list:
- Camping: Black Diamond Mines Regional Preserve (1.9 mi)
Rules & reservations
Official park page- Dogs
Contra Loma Regional Park's official page does not mention dogs; confirm with East Bay Regional Park District. Source
Gate hours change monthly, from 7 a.m.–5:30 p.m. in winter to 6 a.m.–8:30 p.m. in summer.
Map & directions
1200 Frederickson Lane, Antioch, CA 94509
Nearby parks
Straight-line distanceContinue exploring
Contra Costa County parks Parks in AntiochSources & 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, fees, swimming
- OpenStreetMap facilities and trailsfacilities.boat-launch, facilities.picnic-area, facilities.restrooms, facilities.volleyball, trails
- U.S. Census Bureau place boundariescity
- Official park page (checked for dog and fee information)unstated.dogs
- 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