Martin Lake, also known as Lake Oehm, is a recreational reservoir located in Huerfano County, Colorado. Owned by the local government, this dam was completed in 1910 and stands at a height of 24 feet, with a storage capacity of 4,076 acre-feet. With a primary purpose of recreation, the dam also serves for irrigation and water supply needs in the area.

Situated along the Cucharas River-OS, Martin Lake covers a surface area of 190 acres and has a maximum discharge capacity of 4,900 cubic feet per second. The dam's spillway, with a width of 270 feet, is uncontrolled, posing a high hazard potential. Despite this, the dam's condition assessment as of March 2020 was deemed satisfactory, with a moderate risk level of 3.

With its scenic surroundings and varied uses, Martin Lake provides not only a popular recreational spot but also plays a crucial role in water management in the region. As climate change impacts water resources, the proper maintenance and monitoring of dams like Martin Lake are essential for sustainable water supply and environmental resilience in the face of changing climate patterns.