Sideling Hill

Sideling Hill is a mountain ridge in western Maryland and southern Pennsylvania, over which Interstate 68 runs, about a mile south of the MD-PA border.  Even with a notch carved out of the top of the ridge, the uphill climb from either direction on I-68 can require quite a bit of effort from your car's engine.  Just east of the notch is a rest stop, which includes an exhibit center and a pedestrian bridge over the highway.  From the bridge, I took a picture of the north face of the notch, above the westbound lanes.  You can see the various layers of rock and how they're bent, which probably occurred as the Appalachian mountains were thrust upward.  The stairway to the right leads up toward the rocks.

Here's the exhibit hall, with the pedestrian bridge to the left.  It may be reached by a stairway behind the building, with its end, from this angle, behind and to the right.  The bridge and a path at its southern end lead to a rest stop for the eastbound lanes.

Looking east, we see some low hills and valleys, and some higher hills in the distance, which could be South Mountain or the Blue Ridge.

For more information on Sideling Hill, go here and here.  For more on Interstate 68, go here.