Highway 68 runs through Sideling Hill of the Allegeny Mountains, not on
top or around the base, RIGHT THROUGH. The project cost twenty million
dollars and over five million dollars in explosives. The blast created
a V-shaped wedge 340 feet deep and 810 feet long. The rock layers that
were exposed predate the dinosaurs by 100 million years. At the base of
the cut is four-story Sideling Hill Exhibit Center. There, Maryland State
Park Service personel and geologists are on hand to explain the color coded
sedimentary layers of the Paleozoic period. 350,000 people visit the center
a year. It has classrooms for college geology courses and grade school
earth science. The visitors center is open 9 AM to 5 PM everyday except
holidays. Call (301) 842-2155 for more information.
