U.S. Forest Service · Cleveland National Forest · Palomar Mountain, CA

Observatory Campground

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.

More like this: reservable in California · pets allowed in California

Check availability on Recreation.gov ↗
Observatory viewOBSERVATORY CAMPGROUNDOBSERVATORY CAMPGROUNDOBSERVATORY CAMPGROUND
Photos courtesy of Local staff · Recreation.gov

Site mix

Standard, no hookups28
Most sites here open on Recreation.gov six months ahead, at 10 a.m. Eastern. Sold out is not final: cancellations come back into the pool, most of them two to three days out. How to catch one

Site guide

Will my RV fit

The longest site here provides 35 feet of vehicle capacity. Most sites are shorter.

Have the trailer VIN? It carries the trailer length.

28 sites. Tap a filter to narrow the list; the map follows.

SiteEntryFits, ftSurfaceShadePeople / vehiclesFiresAccessibleRating
003Back-in12PavedPartial8 / 2YesYesBasic
005Back-in12PavedPartial8 / 2YesBasic
006Back-in12PavedPartial8 / 2YesBasic
008Back-in12PavedPartial8 / 1YesBasic
009Back-in12PavedPartial8 / 1YesBasic
010Back-in12PavedPartial8 / 1YesBasic
011Back-in12PavedPartial8 / 1YesBasic
013Back-in12PavedPartial8 / 1YesBasic
017Back-in15PavedPartial8 / 2YesBasic
019Back-in15PavedPartial8 / 2YesBasic

Per-site records as published by the managing agency on Recreation.gov. Blank cells mean the agency listed nothing for that site. Check-in 2:00 PM, checkout 12:00 PM.

Amenities & rules

HookupsNone
Max vehicle length35 ft
EquipmentRVs & trailers, Tents
PetsAllowed
CampfiresAllowed, subject to restrictions
Tent padsYes
AccessibilitySites 003, 028, 035/036 are listed accessible

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.

Individual sites vary. Confirm on Recreation.gov or with the managing office.

Season & status

StatusOpen
SeasonApril 01
ForestCleveland National Forest
BookingThe 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.
FeesFees: $20/night for single unit, $40/night for double unit, $5/night for extra vehicle. A Forest Adventure Pass is required for day use, but is not required for camping.
RulesVehicles 32 ft. max.

Cleveland National Forest recreation page ↗

Weather by month

NOAA climate normals →
Weather by month near Observatory Campground40°50°60°70°80°January: 5.93 inches of precipitation, 6.2 inches of snowFebruary: 7.34 inches of precipitation, 10.6 inches of snowMarch: 4.61 inches of precipitation, 3.1 inches of snowApril: 2.00 inches of precipitation, 3.5 inches of snowMay: 0.89 inches of precipitation, 0.0 inches of snowJune: 0.17 inches of precipitation, 0.0 inches of snowJuly: 0.29 inches of precipitation, 0.0 inches of snowAugust: 0.68 inches of precipitation, 0.0 inches of snowSeptember: 0.48 inches of precipitation, 0.0 inches of snowOctober: 1.21 inches of precipitation, 0.0 inches of snowNovember: 2.25 inches of precipitation, 0.4 inches of snowDecember: 4.56 inches of precipitation, 2.4 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 44.2°F averageFebruary: 43.6°F averageMarch: 47.3°F averageApril: 51.5°F averageMay: 58.8°F averageJune: 67.8°F averageJuly: 74.1°F averageAugust: 74.5°F averageSeptember: 69.4°F averageOctober: 59.9°F averageNovember: 50.3°F averageDecember: 43.7°F average0 in5 in10 in15 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Palomar Mtn Obsy, 3 miles from the campground at 5,550 feet, station USC00046657 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 30 inches a year. The dotted line is average snowfall, about 26 inches a year on the same inches scale.

Getting there

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).

Nearest townPalomar Mountain, California
Coordinates33.3417° N, 116.8786° W · Directions ↗

Supplies & services

Outdoor gearNomad Ventures ↗19.5 mi
Dump stationDump station ↗30.3 mi
RV sales & serviceBobby Combs RV Centers - El Cajon ↗37.6 mi

Locations © OpenStreetMap contributors. Call ahead; hours change seasonally.

Explore

Video

Palomar Mountain - Observatory Campground 360° Virtual Tour (8K)

Worth a stop

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.

  • 0.1 mi
    Observatory
    2.2 mi trail · hiking, horse, bike
  • 0.2 mi
    Fry Creek
    1.7 mi trail · hiking, horse, bike
  • 3.4 mi
    Barker Valley
    3.4 mi trail · hiking, horse, bike
  • 4 mi
    Cutca ↗
    10.4 mi trail · hiking, horse, bike
  • 4.6 mi
    Oak Grove
    1.9 mi trail · hiking, horse, bike

Trail and trailhead records are the Forest Service's. Distances are straight-line to the nearer trail end. Trail conditions are not tracked here.

Public land it sits in

On Wilderness Atlas →

Agua Tibia Wilderness begins about 5.1 miles away, and it is the closest of these.

Each unit is published as a centre point and an acreage rather than a boundary, so this section stands it in for a circle of the same area. Whether a campground is inside, and how far it is from one it is outside, are both approximate.

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.

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.

Guidebooks for California

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Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

Do I need a reservation at Observatory Campground?

Sites at Observatory Campground are reservable on Recreation.gov. 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. Any walk-up sites are listed on the booking page.

Source: Recreation.gov

How much does it cost to camp at Observatory Campground?

Fees: $20/night for single unit, $40/night for double unit, $5/night for extra vehicle. A Forest Adventure Pass is required for day use, but is not required for camping.

Source: Recreation.gov

What time is check-in at Observatory Campground?

Check-in 2:00 PM, checkout 12:00 PM.

Source: Recreation.gov

Is Observatory Campground open right now?

Open as of Oct 16, 2026. Season April 01.

Source: Forest Service status

How many sites does Observatory Campground have?

28 sites, including 28 standard sites without power.

Source: Recreation.gov

Will my RV fit at Observatory Campground?

The longest site here provides 35 feet of vehicle capacity. Most sites are shorter. The sidebar tool checks a trailer or motorhome length against every site.

Source: Will my RV fit

Are there showers or a dump station at Observatory Campground?

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.

Source: Recreation.gov

Are pets allowed at Observatory Campground?

Yes, pets are allowed at Observatory Campground. Leash rules apply.

Source: Recreation.gov

Can I have a campfire at Observatory Campground?

Fires are allowed in the provided rings under normal conditions. Vehicles 32 ft.

Source: Recreation.gov

Are there accessible sites at Observatory Campground?

Sites 003, 028, and 035/036 are listed accessible on Recreation.gov. What that covers (a paved pad, an accessible table, a nearby accessible restroom) is on each site's booking page.

Source: Recreation.gov

Is there cell service at Observatory Campground?

FCC coverage maps show AT&T 5G and T-Mobile 5G at the campground point. Terrain changes that from one site to the next.

Source: FCC Broadband Map

What is there to do at Observatory Campground?

An exciting amateur astronomy project, Explore the Stars, occurs at the campground on several weekends each summer. The Recreation section on this page has the rest.

Source: Recreation