Nickajack Lake has a total of 215 miles of winding shoreline, 10,370 acres of surface area and is 46 miles long, extending up to Chickamauga Dam. The watershed (which is the area of land providing drainage to the reservoir) for Nickajack Lake is 21,900 square miles. Nickajack Dam was named for Nickajack Cave located about a mile upstream.
The counties surrounding Nickajack Lake include Marion County and Hamilton County.
The spectacular scenery of the Tennessee River Gorge, known as the Grand Canyon of Tennessee, offers a scenic backdrop for a variety of lake activities available on Nickajack Lake including boating, fishing, waterskiing, jetskiing, swimming, camping, public parks, public access areas, picnic areas and more. On both sides of the river below the dam are fishing berms and a concrete fishing pier with foot bridges and wheelchair ramps.
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