The Crow Watershed (HUC 10190009) is a relatively small basin located in south-central Montana. The watershed covers an area of approximately 2,250 square miles, with the majority of the land used for agriculture and grazing. The hydrology of the watershed is dominated by the Crow River, which is fed by streams and runoff from the surrounding mountains. The area experiences a semi-arid climate, with long, cold winters and hot summers. Snowpack is a critical component of the watershed's hydrology, with winter precipitation accumulating in the mountains and slowly melting in the spring, providing a source of surface water for the river and surrounding agricultural lands. The Crow River also supports several reservoirs, including Yellowtail Dam on the border of Montana and Wyoming, which serves as a significant source of hydroelectric power and irrigation water for the region.