This document linked below is says this

"Report of "Available Power and Cost of Development - Green River, Henderson - Polk Counties, North Carolina". Spartanburg, South Carolina, December 12, 1906. From George E. Ladshaw, Ladshaw and Ladshaw, Civil and Hydraulic Engineers to Willett Bronson, Superintending Agent, New York City, and C.B. Justice, State Agent for the Trustees. Report references water flow and fall rates at various points, and resulting available power. It also recommends the construction of four dams and four power plants at a total cost of $911,000. Seven copies, typewritten.
Date of Item:  1906-12-12"

Four dams?  Well aren't we lucky it only turned into ONE dam.  

If you scroll down the sidebar printing of the linked excerpt of the Ladshaw and Ladshaw report you can see how Fish Stop is used.  This is not the document I had originally seen, but it does the trick all the same....

"The Fish Stop shoal, or shoals, consists of a number of falls and rapids, extending from Camp creek to Long island, 4150 feet.  The highest fall is about 15 feet.  The first fall above Long island, known as the "Fish Stop:, is 8 ft. high at normal water.  There are a number of others about 8 ft. fall."

http://toto.lib.unca.edu/findingaids/mss/speculation_lands/items/slc0081b.htm