Mallard Slough can be found on the Twomile Lake USGS quad topo map. Mallard Slough is a lake in Marshall County in the state of South Dakota. The latitude and longitude coordinates for this lake are 45.6655, -97.5529 and the altitude is 1781 feet (543 meters). Anyone interested in fishing Mallard Slough should consult with local guides and resources before heading out to fish. Anglers who have fished Mallard Slough 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: Lake
Latitude: 45.6655
Longitude: -97.5529
Elevation: 1781 ft (543 m)
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