The Youghiogheny watershed covers an area of approximately 4,145 square miles, spanning across parts of Maryland, Pennsylvania, and West Virginia. The hydrology of the watershed is dominated by the Youghiogheny River, which flows into the Monongahela River and eventually the Ohio River. The watershed experiences a significant amount of snowfall during the winter months, with some areas receiving up to 100 inches of snow per year. Surface water in the watershed is used extensively for recreation, including fishing and whitewater rafting. The reservoirs within the watershed are primarily used for water supply and hydroelectric power generation. The climate in the watershed is characterized by warm summers and cold winters, with average annual precipitation of around 40 inches. Recent trends show an increase in extreme weather events, such as flooding and drought, which can have significant impacts on the watershed's ecosystems and human communities.