Helena Valley pumping plant and tunnel, constructed 1957-1959, Missouri River Basin project, Montana

An edition of Helena Valley pumping plant and tunnel, constructed 1957-1959, Missouri River Basin project, Montana (1961)

Helena Valley pumping plant and tunnel, constructed 1957-1959, Missouri River Basin project, Montana

technical record of design and construction.

By United States. Bureau of Reclamation.

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Publish Date

1961

Publisher

Language

eng

Pages

163

Description:

subjects: Missouri River Basin Project (U.S.)., Missouri River Basin Project (U.S.). Helena Valley Unit, Pumping stations, Tunnels