The Old Stone Mill, also known as Cravath Lake, is a historic gravity dam located in Whitewater, Wisconsin, along the Whitewater Creek. Built in 1839, this dam serves primarily for recreational purposes and stands at a height of 17 feet with a storage capacity of 940 acre-feet. The dam has a significant hazard potential, with a high risk assessment due to its age and condition.

Despite its age, the Old Stone Mill dam has been regularly inspected and maintained, with its last inspection conducted in March 2020. The condition assessment reports the dam as fair, but the risk of failure is considered very high. Emergency action plans are in place to address any potential hazards that may arise, but the risk management measures are not specified. The dam's historical significance and potential risks make it a focal point for water resource and climate enthusiasts interested in the preservation and management of aging infrastructure in Wisconsin.