All the dialogue in this film was re-looped in post-production.
The story about a maiden killing ten men and drowning with the last victim is completely fictitious. The land with the actual lake was donated by a Native American family with the last name of Tenkiller.
The film was shot entirely in Oklahoma near Lake Fort Gibson and the Fort Gibson dam, though not at the actual Tenkiller Ferry Lake as the story suggests.
Terror at Tenkiller was released on VHS and Betamax by United Home Video in 1986. A DVD was released in 2004 by VCI Home Video, as a part of a double feature with the 1987 film The Last Slumber Party.
Riffed by Rifftrax (Michael J. Nelson, Kevin Murphy, and Bill Corbett) and released March 28, 2014.