The Middle Little Missouri Watershed (HUC 10110203) is located in western North Dakota and covers approximately 4,234 square miles of land. The primary river in the watershed is the Little Missouri River, which is fed by numerous tributaries. The hydrology of the region is characterized by a semi-arid climate, with low precipitation rates and high evaporation rates. Snowpack in the region is generally light and melts quickly in the spring. Surface water in the watershed is typically clear and low in nutrients, making it ideal for recreational activities such as fishing and boating. The primary reservoir in the region is the Lake Sakakawea, which was formed by the Garrison Dam on the Missouri River. Interesting climatic facts about the region include the high prevalence of tornadoes during the summer months and the occurrence of severe winter storms known as blizzards. Ongoing trends in the region include increasing temperatures and decreasing precipitation rates in recent years.