Indian Creek, also known as Mountain Supply #16 or Cowan Lake, is a private-owned irrigation reservoir located in Larimer County, Colorado. Built in 1948, this earth dam stands at a height of 34 feet and has a storage capacity of 3,154 acre-feet with a surface area of 179 acres. The dam serves the primary purpose of irrigation for the surrounding area, drawing water from the Indian Creek.

Maintained by the Natural Resources Conservation Service, Indian Creek has a spillway width of 400 feet and a maximum discharge capacity of 18,000 cubic feet per second. The dam has undergone modifications in 2001 for both hydraulic and structural enhancements, ensuring its continued functionality and safety. With a high hazard potential but a satisfactory condition assessment, Indian Creek presents a moderate risk level and is subject to regular inspections and enforcement by Colorado's Division of Water Resources.

Situated in a picturesque location in Timnath, Colorado, Indian Creek reservoir provides vital water resources for agricultural activities in the region while also serving as a critical component of the local water management infrastructure. This reservoir's history, design, and ongoing maintenance efforts highlight the intersection of water resource management and climate resilience, showcasing the importance of sustainable practices in ensuring the safety and efficiency of water infrastructure systems like Indian Creek.