History of Wyoming
The UP reached the town of Cheyenne, which later became the state capital, in 1867. The railroad eventually spanned the entire state, boosting the population, and creating some of Wyoming's largest cities, such as Laramie, Rock Springs and Evanston. The railroad needed coal, which was discovered in quantity in the southwestern part of the state, especially around Rock Springs. In 1885, a murderous riot known as the Rock Springs Massacre broke out when white miners drove out Chinese miners employed by the Union Pacific Coal Company in Rock Springs.
Wyoming Highway 271
Wyoming Highway 271 is an east–west Wyoming State Road known as "Twenty Mile Road" and is located in west-central Niobrara County, Wyoming, United States. 
Wyoming Highway 271 travels from Wyoming Highway 270 at Lance Creek west 3.19 miles to West Lance Creek where it ends and Niobrara CR 23 takes over. Milepost zero is at its eastern junction with Wyoming Highway 270. WYO 271 also provides access to the local airport.