Two Guns, Arizona, Diablo Canyon Bridge, with 1930s zoo ruins in lower left of photo. Cundiff Store ruins are on the right hand end of the bridge. Route 66 ran over bridge in 1926. Diablo Canyon bridge is at: N 35 12.958' x W 111 35.740', and the Cundiff store is at: N 35 06.911' x W 111 05.749'. March 1994.