Location
Guntersville Dam is located 349 miles (562 km) above the mouth of the Tennessee River, at a point where the southwestward-flowing river begins to change its course to a more northwestwardly direction. The dam's reservoir stretches for nearly 73 miles (117 km) to the base of Nickajack Dam, and includes parts of Marshall and Jackson counties in Alabama and Marion County in Tennessee. The reservoir's backwaters have formed embayments on the lower parts of Browns Creek and Spring Creek to the west and east of the city of Guntersville, respectively, effectively placing the city at the tip of a long peninsula.
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