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Level: Beginner
Length: 10 mi (16.1 km)
Surface: Doubletrack
Configuration: Out & Back
Elevation: +154/ -172 ft
Total: 63 riders

Mountain Biking Rose Canyon Open Space Park

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#312 of 1,003 mountain bike trails in California
#3,921 in the world

Rose Canyon Open Space Park is located in San Diego Just off the 52, between I-5 and I-805. The trail begins as fun singletrack including a couple of skinnies over some water crossings, eventually becoming doubletrack paralleling the railroad. There isn't much (1) in the way of side trails to be found along this route.

Begin at the trailhead at the west end of the parking area. Follow the singletrack trail west, bearing right at any significant intersection. As you approach I-5, turn right heading north next to the concrete aquaduct passing under the 52. Follow the trail noting the railroad to the west. Continue north as the trail eventually widens to doubletrack and turns east, still following the railroad. After turning East, note the side spur to the South (right) leading to an alternate trailhead. Continue East; when you reach Genessee, make a jog north(left) to the 1st stoplight. Cross the road and re-enter the trail on the north side of the fence bordering the school. Continue East along the trail (avoiding the railroad - these trains cook right along and there have reportedly been many fatalities; there is no need to cross the tracks with the suggested route.) When you reach the 805, turn around and proceed back as you came.

*Warning: Don't proceed East past the 805. MCAS Miramar begins here, and trespassing is a major no-no.

First added by Xerien on Jun 19, 2009. Last updated May 11, 2020. → add an update
Before you go
  • Drinking water: unknown
  • Lift service: unknown
  • Night riding: unknown
  • Pump track: unknown
  • Restrooms: unknown
  • Fat bike grooming: unknown
  • E-bikes allowed: unknown
  • Fee required: unknown
This trail information is user-generated. Help improve this information by suggesting a correction.
Getting there
From 52, exit Regents Road/Clairemont Mesa Blvd (The 1st exit just east of I-5.) Turn South, the take the 1st right into the parking area. Head to the West end of the parking lot and locate the trailhead right near the restrooms.

Alternate access is available at the north end of Regents, and off Genessee near Centurion Square.
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Rose Canyon Open Space Park Trail map

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swerverider (on Oct 11, 2019)
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Dry (on Oct 11, 2019)
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Mountain Bike Trails Near San Diego, California

Easiest | 7 mi
Intermediate | 15 mi
Beginner | 17 mi
Beginner | 8 mi

Rider questions

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  • Mateo Juez

    Mostly a doubletrack along the bottom of canyon. There's some fun bits here and there and it's nice for having a lot of shade, at least for socal. If this were my backyard trail it'd be nice, but not worth driving more than 25 minutes for.

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  • Roman Beck

    This ride is all about where you enter. If you start at the end of Lakehurst, Biltmore, or Limerick, you'll have some fun, zippy downhill for 2 to 5 minutes. If you enter at Genesee or Regents, you'll have an easy, flat ride.

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  • Hap Proctor   ✓ supporter

    Sister trail to Marian R. Bear Memorial trail. Mostly double track once cleared of the aqueduct along I-5. Be forewarned the trail is quite narrow above the water channel and a big penalty for a slip up there. Walk through area for most riders. Great beginner trail and good for 15 miles when ridden in conjuction with Marian R. Bear trail.

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  • Craig Yarnold

    Great central San Diego trails. I think this is perfect spot for beginner riders to explore and get some experience before heading out to more challenging terrain. In the fall, the scenery is quite picturesque due to the numerous fall colors in the trees. I usually park at the Marian Bear parking lot off Genesee, then either head east for a short trip and back, or just head west under the Genesee bridge; then follow the trail as mentioned in the description here. At the concrete culvert under the freeway, you can either ride along the eastern edge, which is very narrow, or climb across some rocks at the south end and then ride right up the middle of the ditch and hit the banks for some skatepark carving.

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  • ***

    Easy ride, easily linked with Marian Bear trail for a great 2 hour ride. Disclaimer, rose canyon by itself is more like 7 miles round trip, not 10

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  • david_darling

    A nice cruise through some of San Diego's canyon country. Good for night rides.

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  • Xerien

    I forgot to mention, East of the 805 is Miramar. Trespassing = bad = no more bike. (or so they say)

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