Lower Colorado-Cummins

Watershed Hydrology

The Lower Colorado Cummins Watershed (HUC 12090301) covers approximately 1,307 square miles in southwestern Colorado. The watershed is characterized by high elevations, rugged terrain, and a semi-arid climate. Snowpack is a vital resource in this region, as it provides the majority of the surface water for the watershed. The watershed is home to several reservoirs, including Lake Nighthorse and Totten Reservoir, which are used for recreational purposes and to supply water for agriculture and municipal use. The hydrology of the watershed is heavily influenced by the San Juan Mountains and the Animas River, which flow through the area. Interesting climatic facts include the occurrence of severe droughts and extreme precipitation events, which have become more frequent in recent years due to climate change. Overall, the Lower Colorado Cummins Watershed plays an essential role in providing water resources for the region and supporting local ecosystems.


Surface Flows

Lower Colorado-Cummins Watershed

Snowpack Depths

Lower Colorado-Cummins Watershed

Dams & Reservoirs

Lower Colorado-Cummins Watershed

Groundwater Levels

Lower Colorado-Cummins Watershed

Lower Colorado-Cummins Rivers

Rivers of the Watershed