The San Bernardino National Forest offers rustic camping near Calimesa, California across variable elevations ranging from 3,000 to 11,500 feet. Most dispersed sites sit between 6,000-8,000 feet, creating significant temperature differences between day and night even in summer months. The forest's mixed conifer ecosystem provides natural shade at many sites while southern exposures receive more direct sunlight and can be 5-10 degrees warmer than north-facing locations.
What to do
Hiking the San Gorgonio Wilderness: The trail system near East Flats provides access to multiple wilderness routes. "We stayed 2 days to work here. Saw multiple deer walking by our site," notes one camper who enjoyed wildlife viewing between hikes. San Gorgonio Mountain trails range from moderate to extremely difficult with significant elevation gain.
Climbing at Holcomb Valley: Holcomb Valley Climbers Camp serves as a base for rock climbing enthusiasts. "This area is used almost exclusively by rock climbers, but anyone is welcomed. As long as you follow the guidelines for the area, you can set up your tent anywhere you see a spot," explains one visitor. Routes range from beginner to advanced with most concentrated within a 2-mile radius of camp.
Gold panning history exploration: Several creeks in the area have historical significance. "If you're into panning for gold you just might find some along Holcomb Creek. There are active claims in the area so be respectful," advises a camper who visited the site of 19th-century gold discoveries.
What campers like
Privacy between sites: At South Ridge Yellow Post Sites, campers appreciate the separation between designated areas. "Very nice to find a campsite this private on a weekend in southern California elevation is high enough that temperatures were very enjoyable (mid 80's)," reports one visitor who found solitude despite weekend timing.
Night sky viewing: Clear mountain air and minimal light pollution create ideal stargazing conditions. "We were lucky enough to have a beautiful, clear, not-windy night and morning. Just out of my tent I could see the sun rising," shares a camper who stayed at San Gorgonio Summit Camp. The higher elevation camps above 9,000 feet offer particularly dark skies.
Reliable cell service: Unlike many remote camping areas, several sites maintain connectivity. "Many even spots even for bigger vehicles. Very quiet and I even have internet (Telekom)!" notes an East Flats visitor. Another camper confirms: "Starlink internet here was great and we stayed 2 days to work here."
What you should know
Fire restrictions vary seasonally: Regulations change throughout the year based on conditions. "Fires aren't allowed during certain periods. Just be aware, we brought our own off the ground stove. And it was perfectly fine," explains a visitor at Holcomb Valley. Most areas require fire permits even when fires are allowed.
High elevation impacts: Camping at High Creek Camp - San Gorgonio Wilderness means dealing with altitude effects. "It is a long hike mostly due to the altitude. The last few miles seem like they take forever," reports a backpacker. Symptoms like headaches and fatigue affect many visitors above 9,000 feet.
Weather preparedness essential: Temperature swings of 30-40 degrees between day and night occur regularly. "We stayed at halfway camp in negative degree weather," reports one winter camper who experienced extreme conditions. Even summer nights can drop below 40°F at higher elevations.
Tips for camping with families
Accessible exploration areas: Some spots provide safe zones for children to roam. "It's secluded and has enough trees for a hammock. Our kids loved being able to explore, but they were covered in sand/dirt by the end of the trip," shares a family who visited Coon Creek Yellow Post.
Wildlife viewing opportunities: Many sites offer chances to observe forest creatures. "Saw multiple deer wandering through our site," reports an East Flats camper, while another mentions "Wildlife includes deer, lizards, snakes, woodpeckers, and lots of squirrels."
Bug protection requirements: Insect activity varies by location and season. "I recommend you bring extra mosquito repellent," advises a camper at South Ridge Yellow Post Sites. Another visitor notes "Mosquitoes come out at dusk—repellent is a must."
Tips from RVers
Road condition challenges: Access varies significantly between sites. "You definitely need a high clearance vehicle. There are campgrounds in the area and also yellow post campsites," explains a visitor to Holcomb Valley. Prepare for unpaved surfaces on most approaches.
Size limitations on forest roads: Not all areas accommodate larger vehicles. "Multiple free camping spots from the Y up to Fish Creek all the way to Coon Creek Cabin. 1st spots on the left are big rig friendly, you do have about a mile of dirt road before you get to them," notes a camper at Yellow Post #54. They continue, "if you have a bigger trailer and don't find any spots in the first few locations turn around."
Leveling requirements: Many sites feature uneven terrain. "The campsite was easy to find there are plenty of spots and they are level multiple spots for a class a 34 foot motorhome," reports one East Flats visitor who successfully positioned a larger rig, though this represents an exception rather than the norm for primitive camping near Calimesa.
