Yamcolo Reservoir, located in Garfield County, Colorado, is a vital water resource managed by a public utility for irrigation and water supply purposes. This Earth-type dam, completed in 1980, stands at a height of 97 feet and has a maximum storage capacity of 12,140 acre-feet. With a normal storage capacity of 9,621 acre-feet and covering a surface area of 188 acres, Yamcolo Reservoir plays a crucial role in supporting the agricultural sector in the region.

The dam on the Bear River has a high hazard potential, but its condition is assessed as fair, with the last inspection conducted in June 2020. The spillway width is 18 feet, and the maximum discharge capacity is 3,984 cubic feet per second. Despite being a relatively small reservoir with a drainage area of 28 square miles, Yamcolo is a key component of the local water infrastructure, providing essential resources for the community in Yampa and beyond. Water resource and climate enthusiasts will find Yamcolo an intriguing example of water management in the Western United States.

With its moderate risk assessment, Yamcolo Reservoir demonstrates the importance of ongoing risk management and emergency preparedness. While the dam has not undergone major modifications in recent years, its role in water storage and supply highlights the need for continued monitoring and maintenance to ensure its long-term sustainability. As a regulated facility under the oversight of the Colorado Department of Water Resources, Yamcolo serves as a reminder of the intricate balance between water resource development and environmental stewardship in the face of changing climate conditions.