Sunrise Mine Historic District

Platte County, Wyoming, located in the southeastern part of the state, has a rich history that dates back to the 19th century. The area was initially inhabited by Native American tribes, including the Arapaho and Cheyenne, who relied on the region's abundant wildlife and vast grasslands for their livelihoods. European explorers and trappers first began to explore the area in the early 1800s.

In the mid-1800s, during the westward expansion, Platte County became a key location for travelers along the Oregon Trail. The county was crossed by thousands of pioneers seeking a better life in the West, with the Oregon Trail serving as a major transportation route. Fort Laramie, located in present-day Platte County, became an important trading post and military outpost during this time, further establishing the region's significance.

The county's history also includes a significant role in the development of the American railroad system. In the late 1860s, the Union Pacific Railroad constructed its transcontinental route through Platte County, connecting the eastern and western coasts of the country for the first time. This brought economic growth and opportunities to the area, as the railroad spurred the establishment of towns and industries along its route.

Platte County continued to develop and thrive in the following decades. Agriculture, especially ranching, became a prominent industry, utilizing the county's fertile land and abundant grasslands. The discovery of oil in the early 20th century also brought economic prosperity to the area, leading to the establishment of oil fields and refineries.

Today, Platte County retains its historical importance as a gateway to the West. The county's rich history is celebrated through various museums, historic landmarks, and events that showcase its past. Platte County continues to be a thriving community, embracing its heritage while also adapting to the changing times.