The Upper Sabine Watershed covers an area of approximately 2,566 square miles in northeast Texas and southwest Arkansas. The Sabine River is the main hydrological feature in the watershed and runs for 555 miles before emptying into the Gulf of Mexico. The watershed receives an average annual rainfall of 44 inches and experiences hot summers and mild winters. The watershed is known for its dense forests, with pine and hardwoods being the dominant tree species. The region also experiences occasional snowfall during winter months. The surface water in the watershed is used for agricultural, industrial, and municipal purposes, and there are multiple reservoirs and lakes in the area that serve as popular recreational destinations. The watershed is also home to a diverse array of wildlife, including black bears, white-tailed deer, and coyotes. Climate change is expected to impact the region with increased temperatures, changes in precipitation patterns, and more frequent extreme weather events.