Campsite AtlasOso Group
The Oso Group Campground is nestled in the beautiful Barton Flats area of the San Bernardino Mountains. It is surrounded by picturesque pine trees and miles of scenic landscape. In addition to a nearby lake and river access, a variety hiking, biking and horseback riding trails can be accessed from the campground. Its location also provides a great place for visitors to relax, take in the fresh mountain air, and enjoy the beautiful scenery. The campground provides access to the famed Santa Ana River Trail, which when completed will travel all the way from the mountains to the pacific ocean, providing spectacular views along the way.
Campsites
| Group sites | 1 |
| Total | 1 |
Amenities & rules
Compiled from site-level records; individual sites vary. Confirm on Recreation.gov or with the managing office.
Getting there
Take I-10 East to Redlands. Take the University Street exit, EXIT 80. Turn left (northbound) on University Street. Turn right onto E. Lugonia Avenue/SR-38. Continue on State Highway 38 for approximately 22 miles to the campground entrance.
Campgrounds nearby
Data source: Recreation.gov RIDB, retrieved August 30, 2026. The Campsite Atlas is an independent publication and is not affiliated with or endorsed by the Recreation.gov or any federal agency. Always confirm critical details on the official Recreation.gov page before you travel.