Looking west from North Fork Mountain. Except for the rocks, most of the foreground is a foreknob of NFM. Just beyond that, if you could see it, is the North Fork (of the South Branch Potomac) River. What you can see, continuing up the frame, are some foothills, locally known as foreknobs, of the Allegheny Front. Forming the horizon is the Allegheny Front.

What is hard to see is that we are looking up at the Front. Unlike North Fork Mountain–a knife-edge ridge, the Allegheny Front is actually a plateau, miles across. That we can’t see anything but an edge is an indication that we are seeing it from a lower altitude.

45mm Zeiss Tessar CY, Canon 5D Mk II, Aperture 3, Ps CS5.