Horse Creek, also known as Timber Lake, is a private irrigation dam located in Las Animas, Colorado. Built in 1900 by the USDA NRCS, this earth dam stands at 30 feet tall and spans a length of 10,765 feet. With a storage capacity of 43,125 acre-feet, the dam serves the primary purpose of irrigation for the surrounding area, covering a drainage area of 122 square miles.

The dam's spillway, with a width of 325 feet, is uncontrolled, and the structure is classified as having a significant hazard potential with a fair condition assessment. Horse Creek has been regulated by the Colorado Department of Water Resources, ensuring that it is inspected, permitted, and enforced to meet state standards. The dam's last inspection in March 2019 revealed its moderate risk level, prompting a biennial inspection frequency to monitor its safety and maintenance needs.

Water resource and climate enthusiasts will find Horse Creek to be an intriguing feature in the landscape of Otero County, Colorado. Its historical significance, engineering design, and regulatory oversight provide valuable insights into the intersection of water management, infrastructure development, and environmental stewardship in the region. As an essential part of the local irrigation system, Horse Creek stands as a testament to the ongoing efforts to balance water resource utilization with safety and sustainability in the face of changing climate conditions.