Along the Barker Dam trail, there is a
display of petroglyphs etched on the walls of a granite overhang.
The reason they look so visible and clear is because in the 1950's
a movie crew shooting a Western on this location painted over
them to make them more visible to the camera (what a stupid thing
to do). For this reason I read somewhere that the park calls these
paintings the "Disney petroglyphs".
