Seeing dramatic folded strata from the car: Sideling Hill, Maryland, USA

Deborah Painter (USA) In many states of the United States and in many locales in the United Kingdom, there are historic markers at the site of an important historic home or event. However, I wonder if every accessible rock formation had its own historic marker, would more people take the time to learn about it? The entire history of the planet is seen in rock formations. Just west of the town of Hancock, in the state of Maryland, USA at Mile Marker 74 on Interstate 68 (coordinates 39° 43’ 11.54” N, 78° 16’ 58.29” W) is the Sideling Hill road cut, a textbook example of tight folds in a mountain (Fig. 1). Until relatively recently, the visitors centre located adjacent to the cut was a perfectly complete historic marker. It gave travellers not only a place to stop to buy refreshments and relax at a picnic table surrounded by shade trees. It also provided an opportunity to read about the history of a spectacular cut in a mountain resulting from a need for safer transportation through a difficult and rugged stretch of road. Fig. 1. View west along Interstate 68 and US Route 40 (National Freeway) from the Victor Cushwa Memorial Bridge as it passes through the Sideling Hill Road Cut in Forest Park, Washington County, Maryland. (Credits: Famartin, Wikimedia Commons.) The centre still helps motorists see a geological formation safely from a walkway and an enclosed bridge. Sideling Hill’s transportation story goes back to the earlier days of road … Read More

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