Camp of government engineers at the mouth of Boulder Canyon, Colorado River. The men have been drilling and surveying preparatory to building the 700 foot irrigation and power dam to be erected through the co-operation of seven states and the federal government.

Digital Commonwealth — Boston Public Library

Camp of government engineers at the mouth of Boulder Canyon, Colorado River. The men have been drilling and surveying preparatory to building the 700 foot irrigation and power dam to be erected through the co-operation of seven states and the federal government.

[ca. June 1923]

RightsCC0 — Public Domain

CollectionDigital Commonwealth — Boston Public Library

[Information from item housing] Irrigations

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