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.
Just west of the fall line, which divides Virginia's Tidewater and Piedmont geological regions, the average elevation in the Bon Air area is approximately 200 feet (60 m) above sea-level, which is significantly higher than most of Richmond, only 8 miles (13 km) to the east.n 1911, the new Westham Bridge crossed the James River between Henrico County and Chesterfield County about 7 miles (11 km) upstream from Richmond. Built as a toll bridge, it was named for the nearby Westham Station of the Chesapeake and Ohio Railway in 1911.