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Observatory Trail

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This information is a public record of the 1979 NRT application and may be out of date if it has not been updated by a trail manager --
check with the trail manager for updated details before visiting.

Observatory Trail

USDA Forest Service Backcountry Trail
  • Length
    2.1 miles
  • Elevation Gain
    --
  • Route Type
    out & back

This shaded 4.4-mile hike offers much in the way of exercise, scenery, and nature views and is a perfect summer trail.

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Palomar Observatory dome opening dusk. Photo by Coneslayer.
Palomar Observatory dome opening dusk. Photo by Coneslayer.
  • Palomar Observatory dome opening dusk. Photo by Coneslayer.
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Location: Located on Palomar Mountain on County Road S6, approximately 2 miles north of the intersection of S6 and S7.

  • States: California
  • Counties: San Diego

This rare San Diego gem may be under the radar, even to those living and recreating in the nearby areas. With an abundance of large pine, fir, and cedar trees, this trail feels more like a trek through the Sierra Nevada than almost any other in Southern California. Offering sweeping views of the Mendenhall Valley, large meadows, grazing cattle, gleaming ponds, and sprouting wildflowers, this robustly unique hike has something for almost any level of outdoor enthusiast.

Listed as one of only four National Recreational trails in San Diego County, this shaded 4.4-mile hike is touted as the perfect summer option, providing good aerobic activity on a well-maintained trail, with access to a world-famous observatory, an easy-to-find trailhead, and spectacular views. Great for families, beginners, or those looking to take in the scenic outdoors.

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Allowed Uses:

Hiking/Walking

Public Contact

Cleveland National Forest
10845 Rancho Bernardo Rd.
Rancho Bernardo, CA 92127

Contact the trail manager for current maps and visiting details.

More Details

  • Elevation (low): 4394
  • Elevation (high): 5577
  • Elevation (cumulative): --
  • Part of a Trail System? No
  • Surface (primary): --
  • Surfaces (additional): --
  • Tread Width (average): 0"
  • Tread Width (minimum): --
  • Running length (minimum): --
  • Tread Grade (average, percent): 10
  • Tread Grade (maximum): 29
  • Running length (maximum): --
  • Cross-slope (average, percent): --
  • Cross-slope (maximum): --
  • Running length (maximum): --
  • Certified as an NRT
    Nov 26, 1979
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