Was looking at the Balsam Mtn area in Google Earth. Found it interesting that, especially if you look as some of the older B&W satellite images, you can clearly make out some of the old railroad grades in the area. In some places, you could clearly see where the railroads blasted through a section of rock to make a turn.

Well at 35.666ºN, 83.149ºW, Google Earth topography shows a 150' deep crevasse. But I can't find anything else to indicate if this is real or just a bad data glitch. Anyone have any input if this is real or just a data glitch.

I've seen in the past where some of the topography data was a little off... just look at Fontana Dam (35.4526ºN, 83.8046ºW). About 1/3 of the way across the dam (NOBO) the topography data shows a 20' deep 'V' in the dam. Relatively minor data glitches are to be expected, but an imaginary 150' deep crevasse seems a bit extreme if there isn't anything real to the data.