| title | creator | language | description | tableOfContents | contributor | subject | created |
| Trail Tales | Gillilan, James David | en | | | | Frontier and pioneer life -- Northwestern States; Northwestern States -- Description and travel | 2009-10-24 |
| Mammals of Northwestern South Dakota | Andersen, Kenneth W. | en | | | | | 2010-09-07 |
| The Promise
A Tale of the Great Northwest | Hendryx, James B. (James Beardsley), 1880-1963 | en | | | | Northwestern States -- Fiction; Western stories | 2007-12-04 |
| Astoria, or, anecdotes of an enterprise beyond the Rocky Mountains | Irving, Washington, 1783-1859 | en | | | | Oregon; Astoria (Or.); Fur trade -- Oregon; Northwestern States -- Description and travel; Overland journeys to the Pacific; Pacific Fur Company | 2006-02-19 |
| Ox-Team Days on the Oregon Trail | | en | | | Wilson, F. N. (Frederick N.), 1876-1961 [Illustrator] | Overland journeys to the Pacific; Northwestern States -- Description and travel; Oregon -- Description and travel | 2009-07-29 |
| The Adventures of Captain Bonneville, U. S. A., in the Rocky Mountains and the Far West | | en | | | | West (U.S.) -- Description and travel; Bonneville, Benjamin Louis Eulalie de, 1796-1878; Fur trade -- West (U.S.) -- History -- 19th century; Explorers -- West (U.S.) -- Biography; Northwestern States -- Description and travel; West (U.S.) -- History -- To 1848 | 2006-02-19 |