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.

Hanna, Wyo., best known for its coal mines, was founded in 1889 by the Union Pacific Coal Co. as a company town. It has survived mining disasters and a long cycle of booms and busts. The last mines around Hanna closed in the mid-2000s. The town survives today as a bedroom community, with hopes of future mineral development.

Prospectors first struck oil in the Salt Creek Oil Field in northern Natrona County, Wyo. late in the 1880s. The first gusher came in in 1908. The subsequent boom lasted until the late 1920s, peaking in 1923, when the field produced more than 35 million barrels of oil. Tom Wall, who went to work in the field in 1917, stayed for decades and in the 1970s wrote out his memories of life in the oil patch through boom and bust. After 125 years and thanks to new technologies, the Salt Creek Field continues to produce today.

The Carbon cemetery has been in use since 1868, when the town of Carbon was founded next to coal mines on the Union Pacific Railroad. The town has long been a ghost town, but interest in the cemetery revived in 2002, when a local association began refurbishing it and researching the lives of the people buried there.

Elected to fill out the unexpired term of Gov. DeForest Richards in 1904, Bryant B. Brooks was re-elected to another term in 1907. He was also the first governor to live in the newly complete governor's mansion.

Notorious outlaw Butch Cassidy and his Wild Bunch frequently crossed and hid out in Wyoming when on the run from the law. Cassidy’s 18-month incarceration at the Wyoming State Prison in Laramie, 1894-1896, is a definite fact. Other than that, stories place him and his gang all over the map, from Sundance to Brown’s Hole, and Powder Wash near Baggs to Hole in the Wall near Kaycee. Stories persist as well that Cassidy returned to Wyoming decades after his reported death in Bolivia in 1908, but no hard evidence has yet turned up.

Was she a hard-drinking, swashbuckling mule skinner and Indian fighter? Or an alcoholic prostitute, stuck in menial jobs in a life both dreary and mundane? Calamity Jane's life is two stories: the facts of her biography, and the romantic tales that came to comprise the Calamity Jane legend.

Coal, railroads and oil have helped make Campbell County, Wyo., the second wealthiest county in the state, and the county’s coal mines are the largest in the world. Though coal production has begun to fall slightly in recent years, mining continues to be the main engine of the Campbell County economy. The county’s history is rich in Paleo-Indian and bison-bone discoveries as well.

President Grant appointed John A. Campbell Governor of the Wyoming Territory April 3, 1869. The newly appointed Governor took the oath of office on April 15, 1869 and served until March 1, 1875.

Beautiful Carbon County in south-central Wyoming was established in 1868 and named for its coal. Since fur-trade days, through coal, copper, cattle, sheep, uranium, coal again, natural gas and wind power, booms, busts, and new booms have dominated the economy. The Union Pacific Railroad has by contrast offered a steadying influence, as has the state prison in Rawlins, the county seat. And the North Platte River, locals say, offers the best trout fishing in the world.