0
Pull-thru
USFSCleveland National Forest · California
Observatory Campground
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
Sites2826 reservable
Elev.4,898ft
Comf.Apr-Nov8 months
Max rig35 ft
Electricnonesites
From San Diego1h20real road time
The honest read
Synthesized from
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27
At 4,898 ft, Observatory Campground has a 8-month comfortable window (Apr-Nov). Winter nights average around 34°F, so the shoulder seasons turn cold fast. 28 sites total: 26 reservable and 2 first-come, first-served. Within about 4 miles: 6 peaks, lake or river access.
The campground at a glance
01 · CHARACTER
Reads strongest on shade and reservability. Softest on roomy sites.
Six axes, each scored relative to every other federal campground in the region: quiet (miles to a major road), cool (elevation), roomy (average site spacing), shade, RV-fit (longest rig), and how reservable it is. All six come from data, nothing hand-tuned.
When to go
02 · CLIMATE
avg highavg lowfrost-freedriest · Jun
Apr-Nov
Comfortable window: nights stay above 35°F, days below 90°F.
98%
Of summer weekend-days are dry.
May 4
Last spring frost; first fall frost Nov 4.
60°F
Average July low. Bring a fleece.
Getting there
03 · ACCESS
01
San Diego
60 mi
1h20
02
Los Angeles
120 mi
2h40
03
Fresno
373 mi
8h17
04
San Francisco
568 mi
12h37
05
Sacramento
578 mi
12h51
By drive time
Routed road time (OSRM). Nearest major highway 3.4 mi away.
Picking your site
04 · 28 SITES
Color byShow only
28 mapped sites · dot color = seclusion · click a dot for details. Basemap © OpenStreetMap.
0
Walk-in
0
50-amp
3
Accessible
0
Prime
28
Sites
★ The standout
Site 017
OBSERVATORY CAMPGROUND · good location · shaded.
To neighbor
172 ft
Location
Good
Max rig
15 ft
Type
Standard
What's within four miles
05 · TRAILS · PEAKS · WATER
Trails & Peaks
Trail segments
119
Peaks
6
Viewpoints
6
Water & Access
Lake / river access
yes
To nearest major road
3.4 mi
Method
We synthesize public data layers: RIDB and Recreation.gov facility and site records, Open-Meteo climate normals, OpenStreetMap roads, trails, and water, OSRM drive times, and USGS elevation. We take no bookings, no ads, and no paid placements. Independence is the entire point.