Ambrough Slough is a side channel on the Wisconsin side of the Mississippi River in pool 10, about 5 miles upstream of Prairie du Cien, Wisconsin. The slough enters a 2,500-acre backwater complex of lakes and smaller sloughs. The site lies within the Upper Mississippi River National Wildlife and Fish Refuge. The entire area has experienced a loss of depth from siltation and aquatic plant decomposition. This limits the area of desirable fish habitat. The area is important spawning and rearing habitat for a variety of fish, but this importance is diminishing.
- Approximate Acres: 2746
- State(s) Covered: WI
- Land Ownership: Federal
- Management Agency: USFWS
- Management Authority: Cooperative Agreement
- The Definite Project Report completed in December 2000.
- Project construction was initiated in September 2001 and completed in September 2004.
- The Operation and Maintenance Manual is pending.