Canadian National, CN 2717-5716-5607, with 114 south at McKechnie Lake, Ontario. September 12, 2012. Jack D Kuiphoff © photo

CP 8957-CSX 4600, Q296, at BF 293.6 CSX Pittsburgh sub West Newton, Pennsylvania, November 2, 2014. Jack D Kuiphoff © photo

CREX 1414 1312 with west bound CSX K045, at BF286 CSX Pittsburgh sub, Layton, Pennsylvania. January 10, 2015. Jack D Kuiphoff © photo

BNSF 808-8277-829, westbound autorack splitting the markers, mp337, at Flagstaff, Arizona. April 18, 2001. Jack D Kuiphoff © photo

C&BL, Conemaugh & Black Lick SW1200's ex-P&BR 128-127 at Johnstown, Pennsylvania. May 7, 1991. Jack D Kuiphoff photo

BNSF C44-9W 4701 westbound at mp187 on the Gallup sub, Lupton, Arizona. April 16, 2001. Jack D Kuiphoff photo ©

ICG, Illinois Central Gulf 199335 caboose, southbound at Effingham, Illinois. September 5, 1980. Jack D Kuiphoff © photo

Illinois Central, IC GP40R's 3108 - 3110 with a southbound crossing the TP&W diamond at Gillman, Illinois. June 18, 1993. Jack D Kuiphoff © photo

Amtrak 30th Street station Philadelphia Pennsylvania. July 17, 1977. Jack D Kuiphoff © photo

UP, Union Pacific 7305-8005-9327, on the ex-WP Feather River Route at Belden, California. July 28, 1999. Jack D Kuiphoff photo ©

WC, Wisconsin Central, ex-MILW, SDL39 582, at Sault St Marie, Michigan. September 24, 1995. Jack D Kuiphoff © photo

Santa Fe, AT&SF 653 -829 -649, with a stack train eastbound through Abo Canyon, Abo, New Mexico. April 14, 1997. Jack D Kuiphoff photo ©

BN, Burlington Northern SD40-2 6922 & 8007, on the ex-Frisco westbound, crossing the Verdigris River, at Verdigris, Oklahoma. February 13, 1983. Jack D Kuiphoff © photo

BM&LP, Black Mesa and Lake Powell, GE E60C's 6005-6006-6003-6002, with a loaded coal train at Cow Springs, Arizona. April 18, 1998. Jack D Kuiphoff photo ©

Boston and Maine, BM GP38-2's 204 -208 -203, with BOME, passes the caboose of its counterpart MEBO at East Deerfield, Massachusetts. March 28, 1980. Jack D Kuiphoff © photo