A pen-and-ink map of the Columbia River. Water depths are shown by soundings. Translated title, "Plan of the entrance of Heceta and the Columbia River situated at latitude N. 46ø19§, longitude 18ø53§ west of San Blas, discovered by Dn. Bruno Eceta in the year 1775, and recognized by Captain Gray and Commander Vancouver."

A map depicting Lewis and Clark's route from the Mississippi to the Pacific Ocean. The map shows the relationship between the sources of the Missouri River, Columbia River, and the Rocky Mountains and the locations of Native American tribal groups. The map was copied by Samuel Lewis from William Clark's original drawing. Relief is shown by hachures.

Map depicting the outlet of the Columbia River to the Pacific Ocean. The map shows water depths, Astoria, Oregon, Gray's Bay, Cape Disappointment, and the locations of Native American tribal groups. The northern side of the outlet reads, "Country Low, open & marshy, interspersed with Pines. Thick undergrowth." The southern side of the outlet reads, "High Lands covered with Lofty Pines." The bottom includes a note that reads, "The Cape is a circular knob about 150 f. high," and a note that reads "Engraved for J. Melish's Description of the United States." Prime meridians: Washington, D.C. and London.

A map depicting the Oregon Territory. The map was drawn to accompany Samuel Parker's book, "Journal of an exploring tour beyond the Rocky Mountains," in 1838. The map shows what is today the Northwestern United States from the Great Lakes Region to the Pacific Coast. The map also shows the general locations of Native American tribal groups. Relief is shown by hachures.

A navigational map, “Chart of the Columbia River for 90 miles from its mouth [cartographic material] / drawn from several surveys in the possession of W.A. Slacum ; by M.C. Ewing.” Relief shown by hachures. Depths shown by soundings. Oriented with north to the left. Profiles: Cape Disappointment N.N.E. by compass distance 10 miles -- Cape Disappointment N.N.E. 6 miles. "S. Doc. No. 470. 25 Con. 2d S." Series: Senate document (United States. Congress. Senate) ; 25th Congress, 2d session, no. 470. Imaged map dissected and mounted on cloth backing. Item has also been identified as bb017535.

A map of the Columbia River from Point Vancouver to Cape Disappointment in two sections. Water depths are shown by soundings.

A map of the mouth of the Columbia River, Oregon Territory as surveyed by the United States Exploring Expedition in 1841 under commander Charles Wilkes. Relief shown by hachures. Depths shown by soundings. Inset details soundings of the Bar of Columbia River. Item has also been identified as bb017536.

A map of the Columbia River from its mouth on the Pacific Coast to Fort Vancouver. Water depths are shown by soundings. Translated title, "Map of Columbia River from its mouth to Fort Vancouver at 17 measures of 10,000 meters from the sea."

A hand colored map of the Pacific Coast depicting the ecclesiastical province of Oregon, including Oregon, Washington, and British Columbia. Translated title, "Map of the ecclesiastical province of Oregon." The map labels are written in French.

A hand colored map of the Pacific Northwest, primarily depicting British Columbia and Washington state. The map shows four proposed boundaries between the United States and British Columbia. Relief is shown by hachures and spot heights. Water depths are shown by soundings and gradient tints. The map also shows the route of steamers between Victoria and Fraser River.

A hand colored map depicting Oregon and Upper California. The map shows the area of the United States west of the Continental Divide and locations of Native American tribal groups. A profile of the travelling route from the South Pass of the Rocky Mountains to the Bay of San Francisco is included at the top of the map. Relief is shown by hachures and spot heights.

A map of California, Nevada, portions of western Arizona and Utah, and a southern portion of Oregon. The map shows the locations of Native American tribal groups, "positions where Troops are needed," and "routes that had been traversed by Troops or by which Frontier Posts may be supplied." Relief is shown by hachures. The map is approximately the southwestern quarter of a larger map with the same title.

A hand colored map of the western portions of the United States of America in 1845. The map shows emigrant routes from Missouri to Oregon with reputed distances of chief points of interest along route. The "Gold Region" is highlighted in yellow in northern California. Also depicted are locations of Native American tribal groups. Imprint: "Philadelphia Published by Thomas Cowperthwait & Co. Market St. No. 253. 1849 / Entered according to Act of Congress in the year 1845 by H.N. Burroughs in the clerks office of the District Court of the eastern district of Pennsylvania." Relief shown by hachures.

A nautical map of the “Mouth of Columbia River / from a preliminary survey under the direction of A.D. Bache, Superintendent of the Survey of the Coast of the United States by the hydrographic party under the command of W.P. McArthur Lt. U.S.N. and Asst. U.S. Coast Survey, W.A. Bartlett Lt. U.S.N. Assistant ; reduction for engraving by A. Boschke, draughtsman ; engraved by W. Smith and E.F. Woodward.” Includes inset: View of the Entrance of Columbia River, Cape Hancock or Disappointment E. by N. (compass) 12 statute miles. Relief shown by hachures. Depths shown by soundings and isolines. Includes text on "sailing directions" and "tides." Handwritten note of graphic scale by George Davidson is erroneous.Scale 1:40,000. Item has also been identified as bb017545.

A hand-drawn map of the Willamette Valley drawn by Marshall B. Burk. Burk was the first postmaster for the post office in South Yamhill which was established July 6, 1852. The map shows roads, mail routes, and post offices. Relief is shown by hachures.

A hand drawn map showing Henry Miller's route from Ft. Wayne, Indiana, to Oregon. The map includes notations about significant events or landmarks encountered on the trail. Diaries and other papers of Henry Miller are designated Mss 24 in the Oregon Historical Society research library.

A hand colored map of the western region of the United States of America. The map shows overland routes from Council Bluffs, Iowa to Portland, Oregon and Sacramento, California and the locations of Native American tribal groups. Relief is shown by hachures.

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.

A map of the entrance to the Columbia River. Relief is shown by hachures. Water depths are shown by soundings. The map includes sailing directions and a table of tides.

A map depicting the territory that would become Alaska. The map covers four of the five regions of Alaska, leaving out the far north. The various Native American tribes in the region are classified in a table. Relief is shown by hachures. Translated title, "Map of Russian America."

A hand colored city map of Portland. Includes reference table showing the locations of various facilities such as churches, schools, fraternal organizations, and public squares.

A map depicting a part of the Territory of Washington. The map shows surveyed lines, work under process of being surveyed, townships subdivided, and work proposed to be surveyed in 1856 and 1857. Relief is shown by hachures.

A map of the western half of Oregon, from the northern boundary of California to the Columbia River. The map is number 2 in a series of maps showing explorations and surveys for a railroad route from the Mississippi River to the Pacific Ocean and includes routes in Oregon and California. Relief is shown by hachures.

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 pen and ink map of the plan of Fort Dalles in the Oregon Territory. The map shows old buildings in blue and new buildings in black.

A low angle view of Portland and the Willamette River surrounded by 40 vignettes of structures in the city. Part of Kuchel & Dresel's Pacific Views series.

A manuscript map of the Territorial Road from Jacksonville to Kerbyville, Oregon. The maps is drawn with pen-and-ink on ruled paper with folder creases. Relief is shown by hachures. A handwritten title on the back of the map reads, "Plat of Territorial Road from Jacksonville to California line in Josephine Co. / filed January 29, 1858 / Wm. Hoffman, clk."

A map of the Washington Territory west of the Cascade Mountains. The map shows surveys executed, surveys under contract, and proposed surveys for 1859 and 1860. Various symbols represent Native American reservations, lighthouses, prairies, swamps, roads, trails, and mills. Relief is shown by hachures.