If trainspotting and tracking engine movements from flag to flag are your thing, then one visit to the UP North Yard (hurry before they transfer operations to Arkansas early next year) will provide you with enough engines to keep you busy. On this day we can see 24 engines, which after a little digging, represent 9 different engine types and at least 7 different previous flags of ownership. Those seen include UP 553 (GP38-2), UP 5215 (SD70M), UPY 625 (ex-Missouri Pacific GP15-1), UPY 1324 (Ex-Chicago & Northwestern MP15DC), UP 6685 (AC4400CW), UP 5880 (AC44CWCTE), HLCX 3847 (Ex-Lousville & Nashville, CSX Railroad, Southern Pacific GP38-2), UP 6448 (AC4400CW), UPY 1449 (Ex-Southern Pacific MP15AC), UPY 1314 (Ex-Pittsburgh & Lake Erie MP15DC), UP 9751 (Ex-Southern Pacific Dash944CW), UP 373 (Ex-Chicago & Northwestern, GATX Rail Locomotive Group GP38-2), UP 4670 (SD70M), UP 7111 (AC4400CW), UP 4562 (SD70M) and UP 8174 (C45AH).