Keywords: Nicholson-Viaduct.JPG 77001203 Canadian Pacific Railway freight on the Tunkhannock Viaduct in Nicholson PA in 1989 By Chuck Walsh 1989 1989 own work Kodachrome 64 taken in 1989 scanned to digital file in Jan 2007 <br />Transferred from http //en wikipedia org en wikipedia Chuck Walsh self released into public domain without restriction i e I grant any entity the right to use this work for any purpose and without any restrictions unless such conditions are required by law en wikipedia WallyFromColumbia WallyFromColumbia Original upload log page en wikipedia Nicholson-Viaduct JPG 2007-01-01 22 41 WallyFromColumbia 3600×2423 424214 bytes <nowiki>By Chuck Walsh 1989</nowiki> History of engineering Heritage registers Building engineering World Heritage Sites in unidentified countries National Historic Civil Engineering Landmarks Tunkhannock Viaduct |