Picture Rocks was incorporated as a borough om September 27, 1875. But the history of Picture Rocks began long before European settlers first arrived in 1773. The name of the borough is derived from the pictographs that were left by some of the Native Americans who previously inhabited the Muncy Creek valley. The paintings on the cliffs above Muncy Creek have long since disappeared. The town is built upon land that was once a Munsee Indian village. Evidence of this is found in the arrowheads and other relics that have been found in the vicinity of the creek.