Nolichucky Dam, Greene County TN. I found this in a plastic bag of old photos I picked up at an antique store. This is a small picture: the picture itself (without the margins) is just 3″ x 2″.
A very similar picture is shown on the Tennessee Archives website. That picture is dated to 1946. This would have been shortly after TVA acquired the dam, which began operating in 1913. In 1972, after too much sediment built up in Davy Crockett Lake to allow electrical generation, TVA shut the dam down and removed the equipment.
I read that there have been attempts to convert the dam into some sort of tourist attraction, but, to date, TVA is not amused.