Flutes are aerophones. An aerophone (/ËÉÉroÊfoÊn/) is any musical instrument that produces sound primarily by causing a body of air to vibrate, without the use of strings or membranes, and without the vibration of the instrument itself adding considerably to the sound. Aerophones categorically comprise the largest and most complex group of instruments in the Americas.
The last ten miles of Peters Mountain is wholly within Alleghany County, Virginia. The elevation varies from 3,000 to 4,000 feet, with the highest point, near Zenith, reaching 4,050 feet. Peters Mountain, long a barrier to transportation, is crossed only by State Route 311 and the old Salt Sulphur Turnpike.
There is a small mountain range about seven miles south of Camp Humphreys, with peaks reaching 958 feet in elevation. Larger mountains are located to the northeast, east, and southwest, all within 20 miles with peaks reaching to 2,293 feet in elevation to the south and 1,000 feet in elevation to the southeast.