Duck Lake/Marah is just a short distance West of Granite lake and just right off of I90 in a marshy area. As its name implies, its great for ducks but no good for boating as it's full of foliage and typically seems to have a little water left even in late summer when most marshes in this area are totally dried up. Habitat like this is very important to water foul. The land around this marsh is totally private. To view this pond off of I90 just watch to the right (N.) West bound right after Granite lake.