The Boise Mores Watershed (HUC 17050112) covers an area of 343 square miles in southwestern Idaho. The watershed is characterized by mountainous terrain, with elevations ranging from 4,000 to 8,800 feet. The hydrology of the area is heavily influenced by snowpack, which typically accumulates from November to April each year. The watershed is home to several small lakes and reservoirs, including Anderson Ranch Reservoir, which is used for irrigation, hydroelectric power generation, and recreation. The reservoir is fed by several streams, including the South Fork Boise River and the Middle Fork Boise River. Interesting climatic facts include the fact that the average annual snowfall in the area is 150 inches, and the heaviest snowfall on record occurred on January 6, 1937, when 70 inches fell in a single day. Climate trends in the area include increasing temperatures and decreasing snowpack, which have implications for hydrology and water management in the region.