Mill Creek Dam No 1, located in Hinsdale, Colorado, is a significant earth dam completed in 1954 for recreational purposes. Owned and regulated by the Federal Forest Service, this dam stands at a height of 18 feet and has a maximum storage capacity of 40 acre-feet. The dam, situated on Mill Creek, plays a crucial role in providing fish and wildlife habitat while also offering recreational opportunities for visitors.

Despite being classified as having a significant hazard potential, the condition of Mill Creek Dam No 1 remains unrated as of the last inspection in 2010. With a moderate risk assessment rating, the dam is monitored by the Forest Service to ensure its structural integrity and safety. While there are no emergency action plans or inundation maps prepared as of the latest data update in May 2021, the dam continues to serve its purpose effectively in managing water resources and enhancing the local ecosystem in Colorado. For water resource and climate enthusiasts, Mill Creek Dam No 1 presents an intriguing case study in the intersection of recreational activities, wildlife conservation, and dam safety.