The Pillsbury State Forest is a state forest located in Cass County, Minnesota. Created in 1900, it was the first designated Minnesota state forests. The forest borders Gull Lake and the city of Lake Shore to the north. The forest is managed by the Minnesota Department of Natural Resources. The name of the forest is derived from John S. Pillsbury, the former Governor of Minnesota, who donated the original 1,000 acres (4.0 km2) of land that became the state forest.