Full pool for Nickajack Lake is approximately 633.5 feet (193.1 m) above sea level, and remains consistent during the course of the year, unlike nearby Chickamauga Lake.
The world record for freshwater drum was caught from Nickajack Lake in 1972 by Benny Hull, and weighed in at 54 pounds 8 ounces (24.7 kg).
A lake sturgeon was caught in Nickajack Lake in 2011. This was the first sighting of one in the lake since they left the area in the 1960s.[1]