West Branch Sugar River

It flows into the Sugar River about 2 miles (3.2 km) west of Belleville in Montrose, near the intersection of County Highway PB and Walter Road.

There is a small dam where County Highway G crosses the creek in the unincorporated community of Mount Vernon.

U.S. Route 18 passes through the northern part of the watershed, and Wisconsin Highway 92 crosses through it from northwest to southeast.

The Wisconsin DNR labels the majority of the land type as the Platteville savannah: "the characteristic landform pattern is sloping with summits, shoulders, and backslopes of ridges common.

[5] Prior to this the river had been impaired by contaminated fish tissue (mercury) and degraded habitat (sediment and suspended solids) exceeding its total maximum daily load.