New Fork Lake Dam, Earthen dam in Sublette County, Wyoming, United States
New Fork Lake Dam is an earthen dam on the western edge of the Wind River Mountains in Wyoming that holds back a substantial reservoir. The structure creates a wide body of water that sits against mountainous terrain in this remote corner of the state.
The dam was built in the mid-twentieth century as a water management infrastructure for agricultural purposes. This project became a key part of developing irrigation systems across the region.
The dam and its surrounding lake form an essential part of local agricultural traditions, supporting 94 private irrigators and their cattle operations.
Access to the site requires a permit from the United States Forest Service since it sits on national forest land. The best time to visit is during drier months when the road access is more reliable.
The water level can be lowered by about 7 feet to manage flood control and allow recreational use of the area. This operating flexibility shows how the dam serves both farming and leisure purposes.
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