Booth, also known as Engen, is a federal-owned structure located in Lyman, South Dakota, specifically in the city of Presho. Completed in 1938, this earth dam serves multiple purposes including fire protection, stock, and a small fish pond. With a height of 23 feet and a length of 400 feet, Booth has a storage capacity of 80 acre-feet and a maximum discharge rate of 84 cubic feet per second.

Managed by the Forest Service, Booth has a low hazard potential and is classified as having a moderate risk level. Despite not being state-regulated, the dam has not been rated for its condition assessment and last underwent inspection in October 2006. While it boasts an uncontrolled spillway type, the structure does not have an inundation map prepared or an emergency action plan in place.

With its location along the Dry Draw river/stream, Booth serves as a key resource for fire protection and wildlife in the area. Climate and water resource enthusiasts can appreciate the historical significance and practical utility of this federal-owned structure in the heart of South Dakota.