Keywords: Turbines and generators, Holter Dam powerhouse - Montana 1994.jpg en Looking southwest inside the powerhouse of Holter Dam Lewis Clark County Montana United States in 1994 Generator unit 1 is in the foreground http //lcweb2 loc gov/pnp/habshaer/mt/mt0400/mt0416/photos/197982pr jpg Historic American Engineering Record National Park Service U S Department of the Interior; Kristi Hager photographer; Survey number HAER MT-94-I 1994 PD-USGov ImageNote 1 3376 2118 1100 308 4771 3771 2 Westinghouse ImageNoteEnd 1 Holter Dam Westinghouse products Turbine halls Historic American Buildings Survey of Montana |