Maps. Boulder Canyon project. Boulder Canyon project, All American Canal system, P. A. Rosendorn. chief draftsman; map 39-44. Scale 15 m.=2.3 in. n. p.
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Boulder Canyon project. Boulder Canyon project, All American Canal system, P. A. Rosendorn. chief draftsman; map 39-44. Scale 15 m.=2.3 in. n. p.
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Maps. Boulder Canyon project. Boulder Canyon project, All American Canal system, P. A. Rosendorn. chief draftsman; map 39-44. Scale 15 m.=2.3 in. n. p.