Author: United States. Army. Corps of Engineers / Subject: Discovery and exploration - Yale University Library GeoBlacklight Search Results

Start Over Author United States. Army. Corps of Engineers Subject Discovery and exploration

1. Explorations and surveys south of Central Pacific R.R., War Department : preliminary topographical map embracing in skeleton a portion only of the notes from surveys made in accordance with Par.II Special Orders No. 109 War Dept., March 18th, 1871 and letter of instructions of Brig. General A.A. Humphreys, Chief of Eng'rs. dated March 23rd, 1871

1872. 2002-06-01T04:00:00Z. 2022-03-21T03:47:10Z. United States. Army. Corps of Engineers. G.P.O.?. English. Public. Southwest, New.

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