The San Luis Watershed (HUC 13010003) covers an area of approximately 4,666 square miles in southwestern Colorado and northern New Mexico. The watershed is characterized by a semi-arid climate, with precipitation generally occurring as snowfall in the winter months. The watershed is home to several major reservoirs, including the Blue Mesa Reservoir and the Ridgway Reservoir, which are used for water storage, hydroelectric power generation, and recreational purposes. The San Miguel River and the Uncompahgre River are two major rivers that flow through the watershed, providing important surface water resources for the region. Climate trends in the area indicate that temperatures are increasing, which could have significant impacts on snowpack accumulation, river flow, and water availability in the region. Overall, the San Luis Watershed is an important resource for both humans and wildlife in the region, and careful management and conservation are critical to ensure its sustainability for future generations.