BNSF SD40-2 6815 at Shattuck, OK on July 23, 2008.

BNSF SD40-2 6815 approaches Pampa, TX on July 23, 2008.

BNSF SD40-2 6815 - and GP60 - 8733 westbound with a local at Shattuck, OK on July 23, 2008.

Canon 1DSMKII - 1/1000 sec - f/5.6 - ISO 400 - EF100-400mm f/4.5-5.6L lens @250mm