KnowraOregon TrailLinked fromLinked fromThe 27 pages that link to Oregon Trail, each with the reason it gives.All 27Broader topic 4Related 21Narrower topic 1Compared with 1American frontierBroader topic: Its migration helped establish settlements beyond the Rocky Mountains.Westward expansionBroader topic: Thousands of settlers used this route to reach western territories.Western United StatesBroader topic: Its migration helped establish U.S. settlement in the Pacific Northwest.American WestBroader topic: Its emigrant traffic made overland migration a defining feature of western settlement.