The text and map in question say BNSF still uses eleven sheds on Marias. There are only nine. And most of them are not in the locations shown on the map. Shed 12 is shown pretty close, but it continues east a bit into the curve. Shed 11 is actually nearly a half mile west of where they show it, and the next two sheds actually lie west of where they show Shed 10.7. The remaining four sheds are all shown too far east. Where their map shows Shed 6 is actually the location of the easternmost surviving shed. Shed 4D is gone, and it certainly would not have been on the curving fill where they show it. Several government sites related to Glacier Park, avalanches, etc. do a good job of reporting on the sheds and the railroad's history of fighting snow there. For a visual tour, go to Google Maps, Terraserver, etc., and work your way up and down the hill. You can count the sheds, and see a few trains along the way.