Salisbury police assist at Big Rock Park Tweet Published July 27. 2017 12:00AM by The Press PRESS PHOTO BY DEBBIE GALBRAITHSalisbury police assist Upper Saucon police and fire crews with a rescue at Big Rock Park, 4638 E. Rock Road, 5:25 p.m. July 16. A hiker fell 25 feet and landed on his head.