0
Pull-thru
USFSSan Bernardino National Forest · California
Hanna Flat
Overview Hanna Flat Campground is a family-friendly facility nestled in the pine-covered mountains of Southern California.
Sites67all reservable
Elev.7,103ft
Comf.Apr-Oct7 months
Max rig28 ft
Electricnonesites
From Los Angeles2h09real 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 7,103 ft, Hanna Flat has a 7-month comfortable window (Apr-Oct). Winter nights average around 27°F, so the shoulder seasons turn cold fast. All 67 sites are reservable in advance, so plan ahead. Popular weekends book out. Of the sites, 4 walk-in, and the longest takes a 28-ft rig. Within about 4 miles: 1 named hiking route, 11 peaks, lake or river access.
The campground at a glance
01 · CHARACTER
Reads strongest on reservability and shade. 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-Oct
Comfortable window: nights stay above 35°F, days below 90°F.
95%
Of summer weekend-days are dry.
May 18
Last spring frost; first fall frost Oct 24.
58°F
Average July low. Bring a fleece.
Getting there
03 · ACCESS
01
Los Angeles
97 mi
2h09
02
San Diego
142 mi
3h09
03
Fresno
301 mi
6h41
04
San Francisco
504 mi
11h12
05
Sacramento
505 mi
11h13
By drive time
Routed road time (OSRM). Nearest major highway 2.9 mi away.
Picking your site
04 · 67 SITES
Color byShow only
67 mapped sites · dot color = seclusion · click a dot for details. Basemap © OpenStreetMap.
4
Walk-in
0
50-amp
0
Accessible
0
Prime
67
Sites
★ The standout
Site 024
HANN · shaded.
To neighbor
180 ft
Max rig
20 ft
Type
Standard
What's within four miles
05 · TRAILS · PEAKS · WATER
Trails & Peaks
Named hiking routes
1
Trail segments
151
Peaks
11
Viewpoints
3
Water & Access
Lake / river access
yes
To nearest major road
2.9 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.