The Big Rock Detention Reservoir can be found on the Miller Coulee West USGS quad topo map. Big Rock Detention Reservoir is a reservoir in Valley County in the state of Montana. The latitude and longitude coordinates for this reservoir are 48.0861, -106.9606 and the altitude is 2260 feet (689 meters). Anyone interested in fishing Big Rock Detention Reservoir should consult with local guides and resources before heading out to fish. Anglers who have fished Big Rock Detention Reservoir are invited to submit reviews of the lake. Tell us when you went, what you caught, how the experience ranked overall. Thanks for your reviews, they help to make Fishing Works the best website for anglers.
Feature Type: Reservoir
Latitude: 48.0861
Longitude: -106.9606
Elevation: 2260 ft (689 m)
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