The Fremont River is a 95-mile (153 km) long river in southeastern Utah, United States that flows from the Johnson Valley Reservoir, which is located on the Wasatch Plateau near Fish Lake, southeast through Capitol Reef National Park to the Muddy Creek near Hanksville where the two rivers combine to form the Dirty Devil River, a tributary of the Colorado River.

Capitol Reef National Park is an American national park in south-central Utah. The park is approximately 60 miles (100 km) long on its north–south axis and just 6 miles (10 km) wide on average. The park was established in 1971 to preserve 241,904 acres of desert landscape and is open all year, with May through September being the highest visitation months.