Riverton City Park | Riverton

Belle Fourche Reservoir is a large man-made lake located in western South Dakota, USA.

Visual Characteristics

The reservoir is characterized by its expansive, often calm water surface, reflecting the surrounding prairie landscape. Shorelines vary from exposed mudflats and gravel to areas with sparse vegetation. Water color can range from a muddy brown to a clearer blue depending on recent precipitation and sediment levels. The reservoir's perimeter is defined by earthen dams and dikes.

Location & Access Logistics

Belle Fourche Reservoir is situated approximately 10 miles west of the city of Belle Fourche, South Dakota. Access is primarily via paved roads. State Highway 79 runs along the eastern side, providing access points. County Road 18 and other unpaved county roads provide access to various points around the reservoir. Ample parking is available at designated access areas and boat ramps. No public transport services operate directly to the reservoir.

Historical & Ecological Origin

The reservoir was created by the construction of the Belle Fourche Dam, completed in 1911. It is part of the Belle Fourche Project, an irrigation project managed by the U.S. Bureau of Reclamation. The dam impounds water from the Belle Fourche River, primarily for agricultural use in the surrounding region. Ecologically, it is a significant artificial wetland habitat.

Key Highlights & Activities

Boating is permitted on the reservoir. Fishing is a primary activity, with species including walleye, northern pike, and perch. Birdwatching is possible, particularly during migratory seasons. Camping is available at designated sites. Hiking trails are present along some sections of the shoreline and dam.

Infrastructure & Amenities

Restrooms are available at main access points and campgrounds. Some areas offer shade structures. Cell phone signal is intermittent and generally poor within the reservoir area. Limited food vendors may be present near main access points during peak season; otherwise, amenities are found in Belle Fourche.

Best Time to Visit

The best months for visiting are typically May through September, offering warmer weather suitable for outdoor activities. Mid-morning to late afternoon provides the most consistent daylight for general observation. Fishing is often productive in early morning and late evening. Water levels can fluctuate significantly based on snowmelt and irrigation demands.

Facts & Legends

The Belle Fourche Dam is one of the oldest large irrigation dams in the United States. A specific tip for visitors is to check the U.S. Bureau of Reclamation website for current water levels and any potential access restrictions before planning a trip, as these can change rapidly.

Nearby Landmarks

• Bear Butte State Park (15km Northeast)
• Redwater River Recreation Area (8km Southwest)
• Devils Tower National Monument (Wyoming) (Approximately 50km West - outside 5km radius, but significant nearby)
• Alkali Creek Recreation Area (4km South)