Spirit Lake is a natural freshwater lake located in Orleans, Iowa. The lake is a popular destination for recreational activities like boating, fishing, and swimming. It has a long history, having been formed over 13,000 years ago by glacial activity. The lake is fed by several small streams and has a drainage area of 86 square miles. The lake's water quality is closely monitored by the Iowa Department of Natural Resources, and efforts are underway to improve water quality in the lake. The lake also serves as a critical source of water for agricultural irrigation and provides valuable snowpack for winter sports like snowmobiling and skiing. The lake is an integral part of the economy and culture of the surrounding communities in Iowa.