About OSO GROUP
Overview 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. Recreation 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. It is currently popular for hiking, biking and horseback riding. The Rio Monte Trail is also accessed from the campground, taking hikers to the Rio Monte Panorama, which overlooks the deep gorge of the Santa Ana River Valley. Visitors can also enjoy fishing and non-motorized boating at the nearby Jenks Lake, a small mountain lake with a picnic area and access to hiking trails. The lake is stocked with rainbow trout, as well as largemouth bass, bluegill, sunfish and catfish. Rowboats, canoes and kayaks are permitted and fishing is also available at the nearby Santa Ana River. Facilities The group campground offers one large group campsite, available for tent and RV camping. It can accommodate up to 100 people and about 20 vehicles. There are no utility hookups at the site and roads, as well as the parking area, are gravel and dirt. The site is equipped with multiple tables, a campfire circle and grills. Flush toilets and drinking water are provided at the campground. Tent pads are shaded but group areas are primarily in the open. Natural Features The campground is located in a dense pine forest, at an elevation of about 6,400 feet. The entrance to the Oso Group Campground is the same as for the neighboring Lobo Group Campground. Both share the region with a variety of wildlife and bird species. Nearby Attractions The Gr
How to Get 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.
Driving directions (Google Maps) →What to Pack for Your Stay
Tuned to the live forecast for this park.
👔 What to Wear
- 👕
Long-sleeve shirt
Synthetic or merino, sun-protective.
- 🧥
Light shell or windbreaker
Even on warm days, wind can chill (avg wind 0 mph).
- 👖
Hiking pants or convertible
Layer for variable conditions.
- 🥾
Trail runners or low boots
Comfortable, broken in.
🎒 What to Pack
- 💧
Water
Bring at least 1L of water; more in heat.
- 🍫
High-energy snacks
A snack for the trail.
- 🧴
Sun protection
Sunscreen, sunglasses, brimmed hat.
- 🩹
First-aid kit
Blister patches, ibuprofen, tape, antiseptic wipes.
- 🗺
Offline map
Download your route in advance via Gaia, Caltopo, or OSM-based apps.
Recommendations adapt to the current forecast + trail stats. Use them as a starting point — local conditions, your experience, and the time of day you start all matter.
Plan Your Visit to OSO GROUP
Heading to OSO GROUP? A few things to know before you go:
- Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
- Fees: day-use and camping fees vary; check current rates on the official park page
- Trash & pack-out: follow Leave No Trace principles
- Wildlife: store food in bear boxes where provided; never feed wildlife
- Weather: the 5-day forecast above is updated every 6 hours; verify just before you go
Frequently Asked Questions
Do I need a reservation for OSO GROUP?
No central reservation system listed for OSO GROUP. Check the official page (https://www.recreation.gov/camping/campgrounds/233681) for the latest entry policy and availability.
How do I get to OSO GROUP?
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.
How do I contact OSO GROUP?
You can reach the park at email: clm@clm-services.com.
References & Official Resources
