From staff reports
A Pennsylvania Historical & Museum Commission marker that notes the Parker’s Landing Petroglyphs are under waters of the Allegheny River for much of the year was unveiled Saturday.
“In Pennsylvania, only a very few special places still exist where evidence of prehistoric activities can be found as part of the undisturbed natural landscape,” said Ken Burkett, executive director of the Jefferson County Historical Society.
“The Parker’s Landing Petroglyphs (along the Allegheny River in Clarion County) is one of the rarest and perhaps the most significant of these sites.”
Burkett said for many generations, native people visited this riverbank to inscribe images of humans, fish, birds, animals, and their tracks, as well as mythological figures and other abstract forms into the rocks.
He said the petroglyphs are only visible during times of extremely low water, and can be seen only during June, July, and August.