The James Headwaters Watershed, designated as HUC 10160001, covers approximately 1,039 square miles in western Virginia. The area is characterized by mountainous terrain and a variety of forests and grasslands. Hydrologically, the watershed is significant as it is the headwaters for the James River, which eventually flows into Chesapeake Bay. The region experiences a variety of climatic conditions, with average annual precipitation ranging from 30 to 60 inches. Snowpack accumulation can vary greatly from year to year, with some years experiencing heavy snowfall and others very little. The watershed includes several reservoirs, including the Lake Moomaw and Gathright Dam, which are important sources of drinking water and provide recreational opportunities. One interesting climatic trend in the area is an increase in extreme weather events, including droughts and floods, which has implications for the region's water resources and ecosystems.