The Upper Snake Rock Watershed (HUC 17040212) covers an area of approximately 1,112 square miles and is located in southeastern Idaho. The hydrology of the watershed is dominated by the Snake River, which flows through the area. The snowpack in the watershed is typically high due to its location in the Rocky Mountains, with the highest snowpack occurring in the spring months. Surface water in the area is primarily used for agricultural purposes and is subject to fluctuations in flow due to irrigation demands. Reservoirs in the region contain constituents such as sediment, nutrients, and pollutants that can affect water quality. Interesting climatic facts in the area include the impacts of El Niño and La Niña events on snowpack and streamflow, as well as the potential for increased wildfire activity due to warming temperatures and changing precipitation patterns. Trends in the region suggest a decrease in snowpack and earlier snowmelt, which may have significant impacts on water availability in the future.