George Lake is a gravity dam located in Martin County, Minnesota, specifically in the city of Granada. Built in 1939 by the Works Progress Administration (WPA), this structure serves as a vital component for water resource management in the area. With a height of 10 feet and a length of 72 feet, the dam controls the flow of the Cedar River and provides a storage capacity of 5993 acre-feet.

Managed by the Minnesota Department of Natural Resources (MNDNR), George Lake is regulated and inspected regularly to ensure its structural integrity. The dam's primary purpose is listed as "Other," indicating its multifunctional role in water management. It has a significant hazard potential but is currently assessed as being in satisfactory condition as of May 2014.

The dam's storage capacity, surface area, and drainage area make it a crucial water resource for the surrounding region. With a maximum discharge capacity of 1450 cubic feet per second, George Lake plays a key role in flood control and water supply management. Water resource and climate enthusiasts can appreciate the historical significance and ongoing importance of this gravity dam in maintaining the ecological balance of the area.