A map of the Pacific Coast depicting the Oregon Territory of the United States in 1843. The map shows various posts occupied by the British Hudson Bay Company. A table of elevations is included. Relief is shown by hachures.

A hand colored map showing the disputed territory of Oregon in 1846. The map shows boundaries established by different treaties and boundary proposals between England and America. The Oregon territory is in brown and British possessions are in red. A map of the shores of the Pacific Ocean depicting the position of the Oregon Territory in relation to the rest of the world is included at the bottom.

A map of the Oregon Territory completed October 1, 1855 by The Surveyor General's Office in Salem, O.T. [Oregon Territory], directed by C. K. Gardiner [sic.], Surveyor General. The map shows surveyed townships, road, and pack trails in Oregon Territory west of the Cascade Mountains.

A hand-colored, lithographic map showing the surveyed portions of the Oregon Territory in 1852. The notation in the bottom, right corner of the map reads, "Surveyor General's Office / Oregon City October 21st, 1852." A note in the upper, left corner of the map reads, "Senate Ex. doc. No. 1, 2nd Sess. 32nd Cong." Relief shown by hachures.