The Pike's Peak Gold Rush, which follows…
July 1858 CE
The rush is exemplified by the slogan "Pike's Peak or Bust!", a reference to the prominent mountain at the eastern edge of the Rocky Mountains that guides many early prospectors to the region westward over the Great Plains.
The prospectors provide the first major European-American population in the region.
The rush creates a few mining camps such as Denver City and Boulder City that will develop into actual cities.
Many smaller camps such as Auraria and Saint Charles City will be absorbed by larger camps and towns.
Scores of other mining camps will fade into ghost towns, but quite a few camps such as Central City, Black Hawk, Georgetown, and Idaho Springs will survive.