Coffee Lake in Carlton, Minnesota is a concrete gravity dam completed in 1939 with a primary purpose of recreation. Managed by the local government, this dam has a height of 10 feet and a storage capacity of 1500 acre-feet. The lake covers a surface area of 67 acres and has a drainage area of 11.6 square miles, with the Moose River serving as its primary water source.

The dam has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in July 2013. While it does not have an Emergency Action Plan (EAP) prepared, the risk assessment for the dam is moderate. The structure has a spillway type of uncontrolled and is located in the Detroit District under the jurisdiction of MNDNR EWR. With its serene setting and recreational opportunities, Coffee Lake is a valuable water resource for the community of Sturgeon Lake.

Enthusiasts of water resources and climate will appreciate the historical significance of the dam, designed by WPA-BC, and its role in providing recreational activities for the local residents. As a regulated structure in Minnesota, Coffee Lake serves as a vital part of the region's water management system, showcasing the intersection of human engineering and natural resources. Its location along the Moose River adds to its ecological importance, making it a focal point for conservation efforts and sustainable water use in the area.