Note (return) — NATURAL TUNNEL, IN VIRGINIA.
Reading edition
"The mountains in this vicinity—long. 82° to 84° W. from Greenwich, lat. 35° to 36° N.—are among the most lofty of the Allegheny range. Several knobs3 in this part of the range, among which may be enumerated the Roan, the Unaka, the Bald, the Black, and Powell's mountains, rise to the height of at least four thousand five hundred feet above tide."