1 | WSYL | WILLIAM SYSTEM LTD, THE | | | SCAC4 |
2 | WSYP | White Sulphur Springs & Yellowstone Park Ry. Co. | 1/1975; eliminated 10/1975; 1/1980; eliminated 7/1980 | | NAKINA |
3 | WSYP | White Sulphur Springs & Yellowstone Park Ry. Co. | 1/75-1/80; eliminated 7/80 | | NRHS |
4 | WSYP | WHITE SULPHUR SPRINGS & YELLOWSTONE PARK RAILWAY | | | PWRC |
5 | WSYP | White Sulphur Springs and Yellowstone Park Railway | | | RSRV |
6 | WSYS | WR SYSTEMS | | | SCAC4 |