The Linn Cove Viaduct snakes its way through the fall leaf foliage of the North Carolina mountains (Blue Ridge Parkway) in autumn 2009, when the mountain forests and trees transform themselves a tapestry of brilliant orange, red and yellow autumn colors. Linn Cove Viaduct, considered by some as the Grandfather Mountain viaduct or the Blue Ridge Parkway viaduct, is a 1243-foot concrete segmental bridge built in 1979 to avoid environmentally damaging Grandfather Mountain. It is considered one of the most complicated concrete bridges ever built. Grandfather Mountain is about a two-hour drive from Charlotte.