The Dugdemona Watershed, located in Louisiana and Texas, has a land area of approximately 6,500 square miles with a humid subtropical climate. The hydrology of the watershed is dominated by the Dugdemona River, which is a major tributary of the Red River. The river's flow is primarily influenced by precipitation and runoff from the surrounding forests and agricultural lands. The watershed has a limited snowpack due to its location in the southern United States. The surface water in the watershed is used for agricultural irrigation and recreational purposes, and the watershed contains several reservoirs. The reservoirs are used for water supply, flood control, and recreation. The constituents of the reservoirs vary but typically include sediment, nutrients, and dissolved organic matter. Interesting climatic facts include the frequent occurrence of thunderstorms during the summer months and the potential for tropical systems to impact the region during hurricane season.