Oso Group
San Bernardino National Forest — lakeside, fishing, hiking
Location: Angelus Oaks, CA, CA
Price: From $480 per night
Rating: 4 out of 5 (0 reviews)
Season: May through October
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.
Cell coverage (FCC estimate): strong signal. Actual signal may vary in remote areas. Best carrier: T-Mobile. Verizon 4G: 100%. AT&T 4G: 100%. T-Mobile 4G: 100%.
Amenities: Fire Rings, Picnic Tables, Flush Toilets, Drinking Water, Electric Hookups, Camp Host, Fishing
Availability alerts: Set a free cancellation alert at camperwatch.org/campground/oso-group to be notified when sites open up.
Oso Group Campground is nestled in the scenic Barton Flats area of the San Bernardino Mountains with access to nearby lake and river, plus hiking, biking, and horseback riding trails.
Wildlife alert: San Bernardino Flying Squirrel, California Ground Squirrel, American Kestrel, Mexican Whip-poor-will, Spotted Owl, Southern Sagebrush Lizard, Western Skink, and Ringneck Snake documented in the area.
Insider tips for Oso Group: Book early — this is a popular federal campground Bring a self-contained RV as most sites have no hookups Camp Host on-site for assistance and information
Skip Oso Group if: You need RV hookups — no hookups available at most sites. You plan to visit outside May through October — seasonal closure.
Best time to visit Oso Group: May - October — Campground operates seasonally during these months only.
Nearby campgrounds: Lobo Group (ANGELUS OAKS, CA), San Gorgonio (ANGELUS OAKS, CA), Council (ANGELUS OAKS, CA), Buttercup Group Camp (Big Bear Lake, CA).
Cell Phone Coverage at Oso Group
Cell signal at Oso Group (Angelus Oaks, CA): strong overall signal based on FCC broadband data. Best carrier: T-Mobile.
- Verizon 4G LTE: 100% coverage
- AT&T 4G LTE: 100% coverage · AT&T 5G: 100%
- T-Mobile 4G LTE: 100% coverage · T-Mobile 5G: 100%
Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.
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.
Verified facts
RIDB / Recreation.gov official databaseAmenities
RIDB /facilities /campsites · owner-verifiedStraight talk
CamperWatch intel · curated from camper reportsKnown issues, each with the workaround. Read before you book.
Insider tips & when to go
CamperWatch intel · hand-curated entryBook early
this is a popular federal campground
Bring a self-contained RV as most sites have no hookups
Camp Host on-site for assistance and information
Campground operates seasonally during these months only
Things to do nearby
RIDB /activities /recareas + intelConditions today
LiveCell signal
FCC BDC · quarterly datasetFCC maps are theoretical — camper reports confirm signal. Best carrier: T-Mobile.
Wildlife nearby
iNaturalist · research-grade · 8 kmLocation
Leaflet · OpenStreetMap tiles
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.
Campground entrance
Google Maps APICommunity
#community · posts, photos & Q&A · AI-moderated (Claude Vision)Pro tips
- Book on recreation.gov exactly 6 months ahead at 10am ET — San Bernardino National Forest fills fast in peak season.
- Check current road conditions at San Bernardino National Forest before arrival — seasonal closures common.
Frequently asked questions
RIDB facts + intel · FAQPage schema, speakableHow much does Oso Group cost per night?+
What season is Oso Group open?+
Does Oso Group have hookups?+
What is the maximum RV length at Oso Group?+
How do I make reservations at Oso Group?+
What is the cell service like at Oso Group?+
What season is Oso Group open, and what are check-in times?+
Official resources
●Data sources on this page
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