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1861

Reduced section, general map …

Pacific Railroad Survey; War …

0693.001

1861

Reduced section, sketch, W. …

Pacific Railroad Survey; War …

0693.002

1861

Reduced section, map of Nort …

Pacific Railroad Survey; War …

0693.003

1861

Reduced section, territory w …

Bonneville, Benjamin Louis E …

0693.004

Profiles, main routes survey …

1861

Abbot, Henry L.; Humphreys, …

0693.019

1861

Profiles, 1 Ft. Bridger-Ft. …

Beckwith, E.G.; Gunnison, J. …

0693.032

1861

Profile Ft. Smith, Ark.-Mart …

Campbell, A. H. (Albert H.); …

0693.039

1861

Profiles San Francisco Bay-L …

Parke, John G.

0693.048