Observatory Campground operates seasonally from April through November with sites ranging from $20-40 per night, accommodating RVs up to 35 feet along a paved access road that winds seven miles up Palomar Mountain. The Forest Service facility features 44 sites arranged in a loop configuration, with reservations available through the standard booking system.
Sites vary significantly in exposure and privacy. The outer loop provides better tree cover and separation, while inner sites face more direct sun exposure. Brandy G. found site 9 "very big, we fit 3 tents and still had more than enough room" with semi-seclusion from neighboring campers. Several sites require parking and carrying gear down short paths to reach the actual camping area. Some sites include concrete pads originally designed for ADA compliance, which campers have found useful for keeping coolers shaded and providing spark-safe surfaces around fire rings.
The campground provides flush toilets, showers ($1.50), and vault toilets distributed across three bathroom facilities. Water spigots are available, though multiple reviewers note the tap water has a muddy taste and brown coloration. Cell service reaches most areas of the campground. Two marked trails depart from the facility: a 2.2-mile hike to Palomar Observatory with 700 feet of elevation gain, and a shorter 1.7-mile loop around nearby Fry Creek Campground. The observatory itself offers free tours most days from 9am-3pm.
Summer brings intense heat and significant insect activity, particularly mosquitoes and flies. Lisa notes "campers were mostly quiet and respectful, and not at all crowded mid-week in July" but warns of consistent air traffic noise from planes and helicopters. Wildlife includes Stellar's Jays and coyotes, with recent visitors reporting bold coyote behavior around campsites with pets.
Book well ahead for summer weekends, and consider bringing your own water supply for drinking and cooking to avoid the metallic-tasting tap water.
Description
Overview
Science buffs and families are drawn to Observatory Campground for its proximity to the Palomar Observatory, a world-class center of astronomy research operated by the California Institute of Technology. Just two miles from the observatory, the campground provides visitors with a unique learning experience in the great outdoors. The facility offers a variety of amenities for both tent and RV camping. Hiking, biking and picnicking can be found nearby.
Recreation
An exciting amateur astronomy project, Explore the Stars, occurs at the campground on several weekends each summer. A group of amateur astronomers from all across Southern California shares the beauty and awe of the night sky to more than a hundred non-astronomers at the campground. Visitors can also walk a 2.25-mile trail to the observatory itself. Day hiking, biking, picnicking and scenic driving are available in the area. The campground makes a good base camp for visiting Palomar Mountain State Park and exploring the surrounding forest.
Facilities
The campground is organized around one large loop with parking spurs for each campsite. Several sites are equipped with level cement pads to allow campers to set up their telescopes. The sites can accommodate vehicles up to 32 feet in length. Drinking water, coin-operated showers (peak season only), grills, trash cans, campfire rings, picnic tables, a flush toilet (peak season only) and two vault toilets are provided.
Natural Features
The campground sits at an elevation of 4,800 feet in the Palomar Mountains of Southern California. The site is forested with pine and oak trees, though several sites have been cleared to allow campers a wide view of the night sky.
Nearby Attractions
The campground is adjacent to Palomar Mountain State Park and under a two-hour drive from San Diego, California. A general store with basic necessities is down the road.
Reservation Info
The 32 campsites are available by reservation on http://www.recreation.gov/ Reservations must be made 8 days ahead of arrival and can be made up to 6 months in advance.
RV Road Trip Guides
Map & DirectionsObservatory Campground is located in California near Palomar Mountain
Directions
The closest address to the campground is 35899 Canfield Road, Palomar Mountain, California. The campground is about 2 miles north of this address along Canfield Road. From Los Angeles, California, drive south on I-15 to State Highway 76. Go east on 76 for approximately 20 miles and turn left onto South Grade Road (County Road S6). Follow to the top of Palomar Mountain. Once at the top, turn left to continue on South Grade Road/Canfield Road. Continue for approximately 2.5 miles and turn right into the campground.
Address
S6
Palomar mountain, CA
Coordinates
33.3416667 N
116.8786111 W
Connectivity
- T-Mobile5GGood CoverageVerified by 2 usersLast on 6/16/26
- VerizonNo CoverageVerified by 1 userLast on 5/26/26
- AT&T5GGood CoverageVerified by 1 userLast on 6/16/26
Connectivity
- T-Mobile5GGood CoverageVerified by 2 usersLast on 6/16/26
- VerizonNo CoverageVerified by 1 userLast on 5/26/26
- AT&T5GGood CoverageVerified by 1 userLast on 6/16/26
Access
- Drive-InPark next to your site
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
- Group
Features
For Campers
- Market
- Trash
- Picnic Table
- Firewood Available
- Phone Service
- Reservable
- Drinking Water
- Toilets
- Alcohol
- Pets
- Fires
For Vehicles
- Big Rig Friendly
Drive Time
- 1 hr 20 min from San Diego, CA
- 1 hr 59 min from El Centro, CA
- 2 hrs 16 min from Los Angeles, CA
- 3 hrs from Yuma, AZ
































