Fields is a privately owned irrigation dam located in Hat Creek, Wyoming, along the Cottonwood Draw. Built in 1953, this earth dam stands at 25 feet high and 400 feet long, with a storage capacity of 161 acre-feet. The primary purpose of Fields is for irrigation, although it also serves fire protection, stock, and small fish pond needs. The dam is regulated by the State of Wyoming and undergoes regular inspections, with a low hazard potential and a moderate risk assessment rating.

Although Fields has not been rated for its condition, it is equipped with a slide (sluice gate) outlet gate and an uncontrolled spillway with a width of 50 feet. The dam is in Congressional District 00 of Wyoming, represented by Liz Cheney (R), and falls under the jurisdiction of the US Army Corps of Engineers Omaha District. Despite its low hazard potential, Fields presents a moderate risk due to its location and characteristics, emphasizing the importance of ongoing monitoring and management to ensure its safety and functionality for irrigation and other purposes in the region.