Rifle Gap State Park, State park with reservoir in Garfield County, United States.

Rifle Gap State Park is a 1,341-acre Colorado state park in Garfield County containing a 360-acre reservoir. Pinyon-juniper woodland and sagebrush shrubland cover the slopes, with deciduous riparian forest along parts of the reservoir edge. The park has a visitors center, campgrounds, picnic sites and a boat ramp.

Rifle Gap State Park was established in 1966, the same year the 360-acre Rifle Gap Reservoir was created. The park covers 1,341 acres in Garfield County near Rifle, Colorado. It was developed as a Colorado state park with facilities including a visitors center, campgrounds, picnic sites and a boat ramp.

The park's name comes from the gap in the Grand Hogback through which Rifle Creek flows, a route used by travelers before the reservoir existed. Today anglers fish the 360-acre reservoir for trout and pike, while the visitors center provides information on the park's wildlife, including mule deer, elk and great horned owls.

The park lies off Colorado State Highway 325 north of Rifle, with a visitor center, campgrounds, picnic sites and a boat ramp on the 360-acre reservoir. Facilities are reached by paved roads; the reservoir is used for boating and fishing.

The park's 1,341 acres hold pinyon-juniper woodland and sagebrush shrubland, with deciduous riparian forest along parts of the 360-acre reservoir's edge. Mule deer, elk and great horned owls are the wildlife most often observed here.