This mountain pass, lying in the heart of this reserved wilderness of timbers, coals, and ores, has always had its slender thread of local history. It was from a time immemorial a buffalo and Indian trail, leading to the head-waters of the Cumberland and Kentucky rivers; during the Civil War it played its part in certain local military exploits and personal adventures of a quixotian flavor; and of old the rich farmers of Lee County used to drive their cattle through it to fatten on the pea-vine and blue-grass growing thick on the neighboring mountain tops. But in the last twenty-five years--that quarter of the century which has developed in the United States an ever-growing need of iron and steel, of hard-woods, and of all varieties of coal; a period which has seen one after another of the reserve timber regions of the country thinned and exhausted--during the past twenty-five years attention has been turned more and more towards the forests and the coal-fields in the region occupied by the south Alleghany Mountain system. It was not enough to know that at Big Stone Gap there is a water-gap admitting the passage of a railway on each side at water-level, and connecting contiguous workable coals with ores; not enough repeatedly to test the abundance, variety, and purity of both of these; not enough to know that a short distance off a single vertical section of coal-measure rocks has a thickness above drainage level of 2500 feet, the thickest in the entire Appalachian coalfield from Pennsylvania to Alabama; not enough that from this point, by available railroad to the Bessemer steel ores in the Cranberry district of North Carolina, it is the shortest distance in the known world separating such coke and such ores; not enough that there are here superabundant limestone and water, the south fork of Powell's River winding about the valley, a full, bold current, and a few miles from the town the head-waters of this same river having a fall of 700 feet; not enough that near by is a rich agricultural region to supply needed markets, and that the valley itself has a natural drainage, delightful climate, and ideal beauty--all this was not enough. It had to be known that the great water-gap through the mountain at this point, by virtue of its position and by virtue of its relation to other passes and valleys leading to it, necessitated, sooner or later, a concentration here of railroad lines for the gathering, the development, and the distribution of its resources.