Kelly Creek and Pierce Creek are old names for McCord Creek.
Below, I am not sure of the date here. Feb 1956 is printed on the map, but the site says 1931... Considering that the dam, to my knowledge, was not started until 1933 or 1934, I find the 1931 date suspicious.
Photo Currently Unavailable
Beacon Rock and Old Utility Pole from New TrailHCRH State Trail. September 15, 2013