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The Online Encyclopedia of Wyoming History

Business & Industry

Flaming Gorge Dam and Reservoir

In 1869, explorer John Wesley Powell named the red-walled canyon on the Green River in Wyoming Territory “Flaming Gorge.” The Flaming Gorge Dam, completed in 1964, helps regulate water flows and its power plant generates electricity. The dam is located in Utah, but the reservoir stretches north into Wyoming near the town of Green River. In 1968, the U.S. Congress created the Flaming Gorge National Recreation Area, which is located in the states of Utah and Wyoming and draws visitors from around the world.

Buffalo Bill Dam, Wyoming

Construction of Buffalo Bill Dam, completed in 1910 six miles west of Cody, Wyoming, was the key that opened about 90,000 acres in northwestern Wyoming to irrigated farming. Its construction was slowed by engineering difficulties and labor strife, but when it was finished stood as an engineering marvel, one of the first concrete arch dams built in the United States and the tallest dam in the world at the time.

The Coal Camps of Sheridan County

After the Burlington Railroad reached Sheridan, Wyo. in 1892, coal camps—company towns for miners and their families—were established next to a series of mines north of the town. The mines served local and regional markets as well as the railroad. By 1910, a total of around 10,000 people lived in these camps—Dietz, Kooi, Monarch, Acme and Carneyville, later renamed Kleenburn—more than lived in Sheridan. A busy electric railway ran the 15 miles from town to the camps and back. Most of the miners were immigrants, more than half of them Polish, and their descendants still play vital roles in Sheridan County today.

The Oil Business in Wyoming

Oil seeps were reported often in the early 19th century in what later became Wyoming; it was sold, for example to Oregon Trail travelers for wagon lubricant. The first producing well in Wyoming Territory was drilled in 1883 at Dallas Dome southeast Lander. Perhaps the state’s best-known historic oil producing region is the Salt Creek Field, north of Casper, which was one of the world’s largest-producing fields in the 1920s. Oil remains an important part of Wyoming’s economy and culture today, and the state is ranked high among the top national producers.

The Teapot Dome Scandal

Although the Teapot Dome Scandal of the 1920s was named for a Wyoming rock formation resembling a teapot, the wrongdoers were not from the state. During the administration of President Warren G. Harding, oilmen Harry Sinclair and Edward Doheny bribed Secretary of the Interior Albert Fall to gain access to the naval petroleum reserves located at Teapot Dome in the oil-field" class="alinks-link" title="Salt Creek">Salt Creek field north of Casper in northern Natrona County. Fall was the first Cabinet official to be imprisoned for crimes committed during his time in office. Sinclair also served a jail sentence.

South Pass Gold Rush

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.

Toomey’s Mills

Toomey’s Mills in Newcastle, Wyo., began operations as Newcastle Milling Company and Electrical Light Plant in 1905, producing flour by day and generating electricity at night. In 1919, D. J. Toomey purchased the business and it remained in the family until 1965. In 1974, new owners converted it into a restaurant, the Old Mill Inn. In 1995, current owners, Doug and Larita Brown bought the property, which is listed in the National Register of Historic Places, in 1995.

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Encyclopedia | Grass was free and profits enormous in the cattle business in Wyoming Territory — for a while. The business dates to the 1850s, but the boom came after the Union Pacific Railroad connected Wyoming ranges to eastern markets. For a time it seemed as if every investor got rich. Finally, a weakening market and the overstocked range could not withstand two years of drought followed by a terrible winter. The big boom busted, following an economic pattern repeated many times since in an economy still based heavily on natural resources.
Encyclopedia | Mary Hughes was just 17 years old in 1908 when the No. 1 Mine exploded twice in one day—and for the second time in five years—in Hanna, Wyo. Her story shows the devastating impact that coal mine accidents had on families like the Hugheses across Wyoming’s mining communities, and reveals her determination to survive disaster.
Encyclopedia | Billy Owen never saw a railroad until he was eight years old. His mother had told him about railroads. But in his mind as he traveled east by wagon train across Wyoming in the spring of 1868, he had imagined railroad wheels that looked something like wagon wheels. They rolled in grooves. Each groove was made by two rails. That meant it took four rails, as he imagined it, to make a track.
Encyclopedia | In 1843, explorer John C. Frémont reported coal in what’s now southwest Wyoming. In the 1860s, the route of the new transcontinental railroad across Wyoming was chosen partly to access abundant coal deposits for fuel for the locomotives. Coal mining boomed, labor strife increased and Wyoming’s coal industry thrived despite worker strikes and a number of horrific mine accidents. Today, the state produces 40 percent of the nation’s coal, most of it from huge strip mines in the Powder River Basin in northeast Wyoming, for rail shipment to electric power plants in 34 states.
Encyclopedia | Before Glendo Dam could be built on the North Platte River in Platte County, Wyoming, complicated water-rights disputes had to be settled among Wyoming, Nebraska and Colorado and the settlement approved by the U.S. Supreme Court. The process took more than a decade, and shows the difficulties of allocating water in the arid West. The earthfill dam, nearly 2,100 feet long and 190 feet high, was completed in the fall of 1957. It stores water for irrigation and recreation, controls floods, reduces sedimentation in the Guernsey reservoir downstream and produces hydropower.
Encyclopedia | Wind is constant in Wyoming, but ways of harnessing its power have changed substantially over time, from wooden windmills pumping water for railroads and livestock, through small, wind-charged battery plants on 1920s ranches to the huge wind turbines spiking our skylines today.
Encyclopedia | Boysen Dam, named for local businessman Asmus Boysen, was constructed on the Wind River in the 1940s to control flooding and to provide irrigation water for agricultural purposes. The dam was completed in early 1953 and its power plant continues to generate electricity today. Boysen Reservoir provides recreational opportunities as well.
Encyclopedia | The railroad hailed once as the “only line to the great Wyoming copper mining district” in the upper North Platte Valley failed to arrive in time for the copper boom—but still carried passengers and cattle for decades, and lumber for nearly a century.

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