The Connor Battlefield is a park on Tongue River in Ranchester, Wyo., marking the spot where Brig. Gen. Patrick Connor and about 475 U.S. troops and Pawnee scouts in August 1865 attacked a village of 500 Arapaho under the leadership of Black Bear and Old David. The Arapaho suffered 33 killed, and the troops burned their lodges and drove off most of the horse herd. Today the park offers picnic grounds, a campground and a monument to the event.

Alcova Dam, a Bureau of Reclamation project, was completed in 1937. The reservoir opened in 1938 and a power plant was completed in 1955. The $20 million dam project didn’t achieve the high expectations of immense wealth that were forecast at the time of its inception, but continues to provide irrigation water for farmers and ranchers and generates hydropower for the area. Alcova Reservoir offers fishing, boating, camping and swimming opportunities for visitors.

Alonzo Clark was elected to the office Secretary of State in November of 1926 and served two terms. He took office as acting Governor to complete the first half of the late Governor Emerson's term.

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.

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.

Caroline Lockhart wrote a handful of novels about Wyoming in the early 20th century. They made her famous and rich, and they hold up well today. At the same time, she was a new kind of activist, a central figure in bringing to the town of Cody and the state of Wyoming a new kind of nostalgia-based culture that both have embraced ever since.

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.

Bill Carlisle robbed passengers on the Union Pacific Railroad three times in 1916 and once more in 1919, after escaping from the state penitentiary in a box of shirts. In 1936 he was paroled and opened a café and tourist court in Laramie, and later wrote a book about his remarkable life.

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.

Como Bluff in Carbon County and Albany County, Wyo., is the location of one of the world’s richest quarries of Jurassic dinosaur bones. Paleontologists found excellent dinosaur fossils in greater quantity here in the late 19th century than had ever been known before. These included Allosaurus, Diplodocus and Apatosaurus. Many of these specimens are still on display at the Peabody Museum at Yale University, the Smithsonian Institution’s National Museum of Natural History in Washington, D.C., and the American Museum of Natural History in New York City. The site is seldom quarried today, as most of the bones have been removed. Como Bluff is listed on the National Register of Historic Places.