
The Sulphur River carves a complex, winding path through this corner of East Texas and Southwest Arkansas, defining the boundary between Bowie Co and Cass Co. The river's floodplain is a labyrinth of backwaters and seasonal wetlands, including Long Slough, Baker Slough, and Mathis Slough. These interconnected waterways, alongside larger bodies like Alligator Lake and Snaggy Lake, illustrate a landscape heavily shaped by fluvial dynamics and the low-lying terrain of the Gulf Coastal Plain.
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