sentences:  This roadway was marked as State Route 40 by 1935, and was shown along a route connecting Crystal more directly to Overton on SR 12, a distance of roughly .By 1941, SR 40 was moved to a new alignment that resembles the present-day alignment of the Valley of Fire Road—the new routing was an unimproved, roadway traversing the southern side of the Valley of Fire State Park.The road was finally paved by 1964.