Lake Redstone is in La Valle in northern Sauk County of Wisconsin, United States.

The lake's surface area is approximately 650 acres (2.6 km2), with over 17 miles (27 km) of shoreline and 4½ miles long.

The dam is located at the south end and has a top draw spillway.

All excess water creates a cascading waterfall and eventually flows into the Baraboo River.

This article about a location in Sauk County, Wisconsin is a stub.