Keith,
Just from a preliminary glance at the article and some maps, I think that the ski area was actually on the east side of Skyline Drive. Dropping off to the west, it would be a thousand feet before "runout". If the slope was really dropping that far, I think we would see a mention of it in the article. We later see that skiing Skyland Rd does indeed drop 1000ft. There is a northeastern exposure on the east face of the ridge that has about 300 feet of elevation drop with runout.
Jewell Hollow would make a nice 1500' ski area now.
