Open Travel Guide
History of Wyoming

Wyoming History & Heritage Guide 2026

The history of Wyoming told through its places: sites worth the detour and the context they need.

Wyoming has 5+ historical sites covered in this guide, led by Fort Laramie National Historic Site, Wyoming Territorial Prison State Historic Site and South Pass City State Historic Site. Each entry below includes the practical details — what it costs, when to go, and how to plan around it.

Wyoming is the least populous U.S. state yet one of its most spectacular, encompassing Yellowstone National Park, Grand Teton National Park, and vast high-plains ranching country. Cowboy culture runs deep, rodeos are a living tradition, and the landscape swings from boiling geysers to glacier-carved peaks within a single afternoon's drive.

Historical timeline

Key moments that shaped Wyoming.

  1. 1

    Paleo-Indian peoples (ancestors of today's tribes) inhabit the region

    c. 13,000 BCE
  2. 2

    John Colter (former Lewis & Clark member) becomes first European American to explore what is now Yellowstone, reporting geysers and hot springs — initially dismissed as 'Colter's Hell'

    1807
  3. 3

    Mountain men fur trade era; annual Rendezvous gatherings near Pinedale define frontier commerce

    1825–1840
  4. 4

    Oregon/California/Mormon Trail emigration — 500,000 people cross Wyoming; Independence Rock and Fort Laramie are key landmarks

    1843–1869
  5. 5

    Red Cloud's War — Lakota Sioux resistance to Bozeman Trail forts; U.S. Army eventually abandons forts in 1868 Fort Laramie Treaty

    1865–1868
  6. 6

    Transcontinental railroad completed at Promontory, UT; Cheyenne founded; Wyoming Territory grants women the right to vote — first in the nation

    1869
  7. 7

    Yellowstone established as the world's first national park by President Grant

    1872
  8. 8

    Cattle boom; large cattle operations established; Johnson County War (1892) pits large ranchers vs. small homesteaders

    1880s
  9. 9

    Wyoming admitted as the 44th state

    1890
  10. 10

    Teapot Dome oil field discovered; later site of 1920s corruption scandal

    1912
  11. 11

    Coal, oil, and natural gas extraction dominates state economy; Wyoming is largest U.S. coal producer

    1950s–present

Historical sites

Places where Wyoming's past comes alive.

Historic

Fort Laramie National Historic Site

Where: Fort Laramie

Admission: $10 adult / ~$10; under 15 free; Annual Pass accepted

Historic

Wyoming Territorial Prison State Historic Site

Where: Laramie

Admission: $8 adult / ~$8; $5 children 6–17; under 6 free

Historic

South Pass City State Historic Site

Where: Fremont County

Admission: $4 / ~$4; children 17 and under free

Historic

Independence Rock State Historic Site

Where: Natrona County

Admission: FREE

Historic

Buffalo Bill Center of the West

Where: Cody

Admission: $25 adult / ~$25; $18 youth