Lake Darling is a man-made reservoir located near Foxholm, North Dakota. The lake was created in the 1930s as part of the Souris River Basin flood control project. The lake's hydrology is primarily controlled by the Souris River, which flows into the lake from the east. Additionally, snowpack in the surrounding area can contribute to the lake's water level during the spring melt. The lake provides irrigation water for nearby agricultural fields, as well as recreational opportunities such as fishing and boating. The lake's surface area varies depending on water levels, but it can reach up to 9,000 acres when full.