A part of the Red Rock Wildlife Management Area near where South River makes a connection with the Des Moines River. This area is accessed from Hwy 5, south of Hartford, in Warren Co. Follow the River Oaks RV park (formerly Webb's) signs. Instead of entering Webb's take the dead end road to the Des Moines river.

Primarily river bottom with various pools resulting from flooding. During times of low water this can be a great place for shorebirds.

The entire area is important as a resting area for large concentrations of migrating waterfowl, gulls, and shorebirds. The area is also critical as a wintering area for large numbers of Bald Eagles. Nesting birds include Bobolink, Cerulean Warbler, Black-billed Cuckoo, Wood Thrush, and in some years Kentucky Warbler.

The Red Rock Dam is about five miles southwest of Pella; the refuge area extends northwest beyond Runnells in Polk County to near Hartford in Warren County.