Butte, located in Weston County, Wyoming, stands as a vital water resource for the surrounding area. This privately owned structure serves multiple purposes including fire protection, stock watering, and small fish pond management. Built in 1963, the earth dam stands at a height of 28 feet, with a hydraulic height of 23 feet, and a length of 266 feet. The reservoir has a storage capacity of 49 acre-feet and covers a surface area of 4 acres, drawing water primarily from Spring Creek.

Despite its low hazard potential and fair condition assessment, Butte is subject to regular inspections and maintenance to ensure its continued safety and functionality. The dam is regulated by the State of Wyoming, providing oversight in permitting, inspection, and enforcement. The spillway, with a width of 150 feet, is uncontrolled, and the structure has no outlet gates. With a risk assessment rating of moderate (3), Butte remains a crucial component of the local water infrastructure, warranting ongoing monitoring and management to mitigate potential risks and ensure long-term sustainability.