Greybull is a ways north of Worland, and like Worland and Thermopolis, is situated on the banks of the Big Horn River.
The track in Greybull:
I don't know too much about the rail-served industries in Greybull - yet. It will be fun to research that and learn how much the railroad influenced life in this interesting little berg. Greybull had the northern-most comprehensive engine facilities on the Casper Subdivision (Sheridan wasn't part of that subdivision), but space constraints on the layout forbade my modeling them.
The current major railroad-related industry is bentonite mining.