Harvey Gap State Park is centered around a magnificent, turquoise alpine lake called Grass Valley Reservoir. Open year-round for day use, the water is a cool share of blue due to its mineral content, which makes fishing and boating popular attractions. It should be mentioned that pets are not welcome to this park.
Being that this is a day-use-only location, camping is not permitted, however, campgrounds can be found at nearby Rifle Falls and Rifle Gap state parks. Additional recreation can be found in the White River National Forest.
Activities at Grass Valley Reservoir
Boating: Grass Valley Reservoir is closed to boating from November 1 to March 31. Motors must be 20 HP or less and each crew member must have a life jacket available on the boat. There is a boat ramp is on the south side of the lake.
Fishing: Small & largemouth bass, catfish, crappie, perch, northern pike, and rainbow trout are common at Grass Valley Reservoir. Ice fishing in winter.
Hiking: There is no designated trail system.
Hunting: Hunting is allowed 100 yards from any building or Day Use Area and 50 feet from center-line of road. Waterfowl hunting is available on the north end of the lake.
Picnicking: There are 30 picnic sites with grills at Harvey Gap.
Swimming: In the summer, swimming is a popular activity for guests. There is a swim beach at the south entrance of the park, although there is no lifeguard on duty.
Winter Recreation: Ice fishing is permitted when ice is thick enough. There are no groomed trails but the park is open to cross country skiing and snowshoeing.
Address: 5775 Highway 325, Rifle, CO
Hours: 5 am-10 pm
Pets: Not permitted
Fees: Vehicle (per day)
Map: Harvey Gap State Park (PDF)
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