The 2,170-mile Oregon Trail (1840s–1860s) left deep ruts—and unforgettable landmarks—in the landscape and emigrant diaries.
325-ft sandstone spire (Brule Formation). "Most remarkable object" – thousands carved names. Now Chimney Rock National Historic Site.
800-ft bluffs forcing wagons through Mitchell Pass. Scotts Bluff National Monument preserves trail ruts and summit views.
Critical resupply post (1849–1890). "Gateway to the Rockies." Restored buildings, living history. Fort Laramie NHS.
Massive granite dome (130 ft high, 1,900 ft long). "Register of the Desert"—5,000+ names carved. State Historic Site.
Broad, gentle continental divide crossing (7,412 ft). The only practical wagon route through the Rockies. No single peak—just open sagebrush saddle.
Jim Bridger's trading post (1843). Later Mormon, military. Fort Bridger State Historic Site.
Natural carbonated springs—emigrants marveled, drank, did laundry. Geyser (capped) still erupts hourly.
Final ordeal: steep descent (Laurel Hill) or rafting the Columbia. Oregon City = terminus.
Many sites managed by NPS or state parks; ruts visible in dozens of locations.