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1851 A Diagram of a Portion of Oregon Territo … Separate Map A Diagram of a Portion of Oregon Territo … |
1858 Map of Oregon Territory West of Cascade … Separate Map Map of Oregon Territory West of Cascade … |
1860 A Diagram of Oregon Separate Map A Diagram of Oregon. Surveyor General's … |
1859 The Routes between Fort Dalles And The G … Separate Map Map Exhibiting The Routes between Fort D … |