The Blackwater watershed (HUC 10300104) covers an area of approximately 1,301 square miles in West Virginia. The watershed is primarily forested, with smaller areas of agriculture and urban development. The hydrology of the watershed is dominated by the Blackwater River, which flows through the center of the area, and the many tributaries that feed it. The area experiences a significant snowpack in the winter months, which can contribute to seasonal flooding. Surface water in the watershed is primarily used for recreation and wildlife habitat. Reservoirs in the area are used for drinking water, flood control, and hydroelectric power. Interesting climatic facts and trends include the fact that the watershed is located in a region that is predicted to experience increasing temperatures and changing precipitation patterns in the coming decades, potentially leading to changes in the hydrology and ecology of the area.