Cities: Jeffrey City

Gold Flakes to Yellowcake Historic Mine Trail

The Yellowcake Boom The post-WWII quest for uranium in Central Wyoming was triggered by the sudden demand for yellowcake – processed uranium – primarily for national defense in the early years, but later used to fuel the 104 nuclear power plants in the U.S. One pound of yellowcake produces the same amount of energy as 31… Read more »

Oregon Trail

Park Map During the mass overland emigration by covered wagon that began in 1841, the mountain man's pathway along the North Platte and Sweetwater rivers to South Pass would be known by many names. The pioneers of the 1840s entered “Oregon Country” when they crossed the Continental Divide at South Pass and, thus, the name… Read more »