The Bois de Sioux Watershed covers an approximate land area of 4,186 square miles in the US states of Minnesota and North Dakota. It is part of the larger Red River Basin and is named after the Bois de Sioux River, a tributary of the Red River. The watershed receives its water primarily from snowmelt, rainfall, and groundwater. The snowpack in the region is highly variable and is influenced by seasonal weather patterns. Surface water in the watershed includes rivers, streams, and wetlands. The watershed contains several reservoirs, including the Lake Traverse Reservoir, which is used for irrigation, flood control, and recreation. Climate trends in the region show a gradual increase in precipitation over the last few decades, along with occasional extreme weather events such as drought and flooding.