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.

The Casper Army Air Base was built quickly in 1942 to train bomber crews for World War II combat. The facility trained more than 16,000 men before the end of the war. Its population grew to a third of the size of Casper’s, bringing prosperity and a lively social life to the town. The base closed in 1945, when the war ended.

Created in 1868 before Wyoming was even a territory, Albany County and its vast plains are still good for livestock grazing. Thanks to the Union Pacific Railroad and early gold and copper mining, however, the county was industrial in its earliest times. Laramie, the county seat, was chosen as the site of the University of Wyoming in 1886, and the university stabilizes the town’s economic and cultural life.

German-American landscape artist Albert Bierstadt captured a transformative time in American history. His travels through Wyoming and the West gave Bierstadt a one-of-a-kind perspective for painting his best-known works in the 1850s and 1860s, and his grandiose landscapes and their idealized, pristine panoramas have sparked the imagination of generations.

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.

In 1871, Amalia Post of Cheyenne, Wyoming Territory, became one of the first women to serve on a jury in the United States. Soon, she began advocating for women’s rights on a national level. She was an independent businesswoman from the time her first husband abandoned her in Denver in the early 1860s, through her marriage to her second husband, Cheyenne banker and politician Morton Post and up to the time of her death in 1897.

The Ames Monument, a 60-foot-high granite pyramid, was completed in 1882 at the highest point on the Union Pacific Railroad, to honor railroad financiers Oakes and Oliver Ames. The tracks have since been moved, but the monument is still easily visible and accessible from Interstate 80 between Cheyenne and Laramie, Wyo.

After joining the Republican Party, Amos W. Barber was elected Secretary of State in September 1890 and served until January of 1895. Secretary Barber's term was interrupted while he served as Acting Governor from November 24, 1890 until January 2, 1893.

Anchor Dam was built in the 1950s on upper Owl Creek in Wyoming’s Bighorn Basin. The bedrock under the reservoir site is porous, and the reservoir has never held much water. The U.S. Bureau of Reclamation more than doubled its initial costs with subsequent mitigation efforts, which proved unsuccessful. The dam stands today high above a small pool of water.