Looks like Shawnee PA is less than 2 miles from the AT in NJ.
This map does a nice job and easy to measure stuff....
https://nps.maps.arcgis.com/apps/webappviewer/index.html?id=6298c848ba2a490588b7f6d25453e4e0
GA = Sapphire Valley Ski Area, NC 70 mi(ski_it)
NC = Wolf Ridge, NC 1.4 mi(ski_it)
TN = Ober Gatlinburg 5 mi(ski_it)
VA = Massanutten Resort 9.8 mi?(ski_it) Wintergreen Resort 1.0 mi(rickbolger)
WV = Winterplace Ski Resort 26 mi(ski_it)
MD = someplace in PA(ski_it) - Liberty Mountain, PA 7.5 mi (jaytrem)
PA = Blue Mountain 300 ft(trackbiker)
NJ = Mountain Creek 3.4 mi(ski_it) Shawnee (1.85)
NY = Mt Peter 1000 ft(lotsoskiing)
CT = Thunder Ridge, NY 9.6 mi(ski_it) or Ski Butternut MA 10.8 mi(ski_it)
MA = Ski Butternut 0.6 mi(ski_it)
VT = Bromley 0 mi(JMaul) - Killington 0.1mi?(JMaul)
NH = Dartmouth Skiway 0 mi?(lotsoskiing) - Wildcat-0 mi(ski_it)
ME = Sugarloaf 1180 ft(ceo)