Columbia subject headings:
Harvard subject headings:
Mineral industries--Utah--Tooele County.
Railroads--Utah--Tooele County.
Tooele County (Utah)--History.
Princeton subject headings:
Mineral industries--Utah--Tooele County.
Mines and mineral resources--Utah--Tooele County.
Railroads--Utah--Tooele County.
Tooele County (Utah)--Economic conditions.