Brown No. 1, located in Big Horn, Wyoming, is an earth dam constructed in 1913 for irrigation purposes on Crystal Creek. With a height of 30 feet and a hydraulic height of 25 feet, this dam has a storage capacity of 248 acre-feet, providing essential water resources for the surrounding area. Despite its historical significance, the dam is in poor condition as of the last inspection in 2017, with a low hazard potential but a moderate risk assessment rating.

Managed by a private owner, Brown No. 1 is under state jurisdiction and regulation, with permitting, inspection, and enforcement processes in place. It is equipped with an uncontrolled spillway and a single outlet gate. Although the dam has not been modified in recent years, its poor condition highlights the need for maintenance and potential risk management measures to ensure its continued functionality and safety. For water resource and climate enthusiasts, Brown No. 1 serves as a reminder of the importance of maintaining and monitoring aging infrastructure to safeguard against potential hazards and ensure sustainable water management in the region.