What’s now Crook County, Wyo., was crossed by Custer in 1874 on his expedition to the Black Hills, the spark that led to the final struggles of the Indian wars on the northern plains. Ranchers a few years later brought in cattle and later, sheep, and the county was organized in 1885, with its county seat at Sundance. Harry Longabaugh, a.k.a. the Sundance Kid, spent 18 months in jail there. Coal deposits were exploited in the 1890s and shipped by rail to gold smelters in nearby Lead and Deadwood, So. Dak. Devils Tower National Monument, established in 1906 as the first national monument in the United States and still a sacred place for the Sioux, is located in Crook County. Agriculture, mining and timbering still play significant roles in its economy.

On Aug. 2, 1867, a large force of Oglala Sioux attacked woodcutters near Fort Phil Kearny. Soldiers assigned to protect the woodcutters took cover behind a ring of wagon boxes. After the intense battle, both sides claimed victory, and estimates of the dead and wounded varied widely.

The yarn that Thomas Edison dreamed up the idea of a bamboo filament for the incandescent electric light bulb while staring into a Wyoming campfire is almost certainly not true. He did come to Rawlins, Wyoming Territory in 1878, however, as part of an astronomical expedition, and he did go fishing afterwards. The rest of the facts still make for a pretty interesting story.

After World War II, the University of Wyoming was bursting with returning veterans just as the nation, nervous about Communist expansion worldwide, was sliding into the Cold War. UW trustees called for the investigation of textbooks in use on campus to determine if they were “subversive or un-American.” The faculty overwhelmingly resisted the move, and both sides reached a compromise guaranteeing academic freedom in the future.

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.

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.

When Thomas Boylan started collecting dinosaur bones on his homestead in 1915, he first envisioned completing a dinosaur skeleton and using it to attract customers to his gas station on U. S. Highway 30 near Como Bluff. However, he was told that he didn’t have enough bones for that. Instead, he used more than 5,700 bones to build a structure that has become known worldwide as the Fossil Cabin. The historic Fossil Cabin was built in 1932 and stands about five miles east of Medicine Bow, Carbon County, Wyo. The cabin has been featured in Ripley’s Believe It or Not! and is listed on the National Register of Historic Places.

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.

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.

Edward Ivinson made a fortune in banking in Laramie, Wyo. in the 19th century. Late in life, he turned to philanthropy, making large contributions to benefit his town and community. His generosity funded a hospital, a cathedral, a home for aging ladies and an orphanage, all in Laramie.