Cities, Towns & Counties

Sweetwater County’s history is as rich and diverse as its mineral wealth and population. The area became a transportation pathway, with the early pioneer trails and the transcontinental railroad and today’s Interstate 80 serving as important trade and travel routes. Mining of coal and trona and the production of oil and natural gas have been and continue to be significant industries, contributing to the county’s economic wealth and to Sweetwater County’s position as one of the top three revenue producing counties in Wyoming.

Euro-Americans first described what’s now Sublette County in western Wyoming early in the 1800s, when it was a hub for the Rocky Mountain fur trade. Cattle ranchers followed the fur trappers. Soon, tie hacks arrived to cut timber for railroad ties. The county’s first successful oil well was drilled in 1907, and oil and gas have been important to the county ever since. In the early 1990s one of the world’s largest gas fields was discovered south of Pinedale, the county seat. County residents continue to work to balance energy booms with the conservation measures needed to keep life good and to keep tourists coming back.

Discovery of gold near South Pass in the 1860s led to the creation and settlement of short-lived South Pass City, Wyo. and other settlements nearby. The Carissa Mine was one of the richest, but between 1867 and 1869, 1500 lodes were located during the rush, and as many as 2,000 miners and others may have lived in the little town or on their claims. By the early 1870s, only a few hundred were left. Sporadic gold production has continued since, however, with systematic prospecting by an American subsidiary of a Canadian firm permitted as recently as 2006.

South Pass City, a gold mining town founded near South Pass in 1867, reached its pinnacle soon after a valuable strike was made in 1868 at the Carissa Mine. The town is also famous as the birthplace of women’s suffrage, because the 1869 bill making Wyoming Territory the first government in the world to guarantee women the right to vote was introduced by South Pass City’s representative, William H. Bright. Esther Hobart Morris, appointed South Pass City justice of the peace soon afterward, became the first woman in the nation to hold public office. The town, with many original buildings carefully restored, is operated as a state historic site.

Sheridan, Wyoming first boomed when the Burlington and Missouri Railroad reached it in 1892. Named for a Civil War general and situated in the center of Indian War country, the town became a regional center for business and western culture. Sheridan developed many local processing industries in its first few decades, and also attracted wealthy residents. However, its fortunes have fluctuated with the nation’s demand for nearby natural resources like coal, and the changing economics of agriculture. Today, Sheridan’s unique identity is still rooted in its distinctive culture and scenic location near the Bighorn Mountains.

The history of Sheridan County, Wyo., located at the base of the Bighorn Mountains, includes polo ponies, working ranches and farms, a prestigious sanctuary for artists and writers and an abundance of American Indian lore, outlaws, pioneers, miners and Old West dude ranches. Railroads, and the coal mines dug for fuel to run the locomotives running also played important roles in the area’s development.

Saratoga, famed for its hot springs, has often been called the place “where the trout leap in Main Street.” Treasured by fishermen, hunters and outdoor lovers, the town continues to thrive on the tourist trade. A sawmill, mainstay of the local economy from 1934 to 1983, recently re-opened. 

Rock Springs, Wyo. traces its origins to a coal mine established there in 1868 to serve the still-building Union Pacific Railroad. Ever since, the town has been enriched by the people who came from around the world to live and work there—in coal mines, on the railroad and, in recent decades, in trona mines to the west and the oil and natural-gas fields to the north. Rock Springs boasted 56 nationalities by the 1920s. Its political and economic fortunes have closely followed all these industries’ cycles of boom and bust.

Tracing its roots to a work camp for men digging irrigation ditches early in the 20th century, Powell, Wyoming, in northern Park County, remains an agricultural hub. Its economy has been boosted over the last century, however, by nearby coal mines and oil wells, and by public schools, a hospital and a community college, the last three of which are now the town’s largest employers. In 1994, Powell was one of 10 municipalities named an All-America City by the National Civic League.

One of Wyoming’s early large-scale irrigation projects dates to the 1880s in what’s now Platte County, Wyoming and the county, organized in early 1913, still is perhaps best known for its reservoirs and recreation areas. The Oregon Trail ruts and Register Cliff near Guernsey serve as reminders of the pioneer heritage of the area and a coal-fired power plant near Wheatland provides jobs and economic stability.