Arapaho and Roosevelt National ForestsExplore Free Camping Options in Sulphur Ranger District: Your Ultimate Guide
Explore the stunning Sulphur Ranger District, nestled within the Arapaho and Roosevelt National Forests, where outdoor enthusiasts can experience the breathtaking beauty of Colorado's wilderness. Covering over 880,000 acres, the district offers diverse camping options, from organized campgrounds to tranquil free camping sites. Popular campgrounds like East Inlet, which provides easy access to fishing and hiking, and the bustling Shadow Mountain Campground, are perfect for families and friends looking to reconnect with nature. For those seeking adventure on a budget, free camping options such as the roads along the Colorado River and in the Juniper Basin area offer serene spots to pitch a tent under the stars. With over 320 miles of trails and more than 300 lakes, the Sulphur Ranger District is a haven for hikers, anglers, and wildlife watchers alike. Whether you're a seasoned camper or new to outdoor exploration, this Colorado gem promises unforgettable experiences and stunning natural landscapes.
Arapaho Bay Campground is located in the Sulphur Ranger District, Arapaho and Roosevelt National Forests (2 hrs 39 min west of Boulder, CO) with an elevation of 8,320 feet. There are a total of 79 campsites including 9 tent-only sites. The campground is normally open from mid May to mid September. 70 sites can accommodate RVs and trailers between 20 and 45 feet. All sites are currently reservable. Reservations can be booked up to 6 months in advance. Fees range from $17.25 to $34.50. Some amenities include boat ramp, swimming. Activities include boating, fishing, hiking trails, floating sports.
Cutthroat Bay Group Campground is located in the Sulphur Ranger District, Arapaho and Roosevelt National Forests (2 hrs 16 min west of Boulder, CO) with an elevation of 8,318 feet. There are a total of 2 campsites. The campground is normally open from mid May to mid September. Sites can accommodate RVs and trailers up to 16 feet. All sites are currently reservable. Reservations can be booked up to 6 months in advance. All sites have water hookups. Prices start at $127.00 per night. Some amenities include swimming. Activities include boating, fishing, horseback riding, hiking trails, floating sports.
Green Ridge Campground is located in the Sulphur Ranger District, Arapaho and Roosevelt National Forests (2 hrs 25 min west of Boulder, CO) with an elevation of 8,353 feet. There are a total of 72 campsites including 6 tent-only sites. The campground is normally open from mid May to mid October. 66 sites can accommodate RVs and trailers between 18 and 51 feet. All sites are currently reservable. Reservations can be booked up to 6 months in advance. Fees range from $17.25 to $51.75. Some amenities include dump station, boat ramp, swimming, flush toilets. Activities include boating, fishing, horseback riding, hiking trails, floating sports.
Stillwater Campground is located in the Sulphur Ranger District, Arapaho and Roosevelt National Forests (2 hrs 14 min west of Boulder, CO) with an elevation of 8,306 feet. There are a total of 105 campsites including 29 tent-only sites. The campground is normally open from mid May to mid October. 76 sites can accommodate RVs between 15 and 40 feet. All sites are currently reservable. Reservations can be booked up to 6 months in advance. 20 sites have electric and water hookups. 1 site has electric hookups. Fees range from $19.50 to $44.00. Some amenities include shower, dump station, boat ramp, swimming, amphitheater, flush toilets. Activities include biking, boating, fishing, horseback riding, hiking trails, floating sports.
map icon in the lower right corner.
*Earn our 
Show your commitment in keeping our forests healthy and protecting our public lands by earning the Leave No Trace badge.