Crossing what’s now Wyoming in sub-zero cold, Elizabeth Cumming suffered a badly frostbitten foot in November 1857. She and her husband Alfred—the new governor of Utah Territory—and about 2,000 U.S. troops were unsure if they’d be welcomed in Salt Lake City—or faced with armed resistance.

In 1909, Percy Metz, 23 years old and recently elected Big Horn County attorney, helped prosecute five men for their murderous roles in the Spring Creek Raid. The case made his reputation; he became a district judge at 29 and spent a long and successful life in the law.

Union Pacific locomotives still rumble through Cheyenne, as they first did 150 years ago. But after the railroad arrived in November 1867, skeptics questioned whether the town would last, as so many other end-of-tracks communities had died once the graders and tracklayers moved on.

In 1913, Buffalo Bill joined Prince Albert I of Monaco—the first reigning monarch ever to visit the United States—on a big-game hunt east of Yellowstone National Park. Both were at points in their lives where they badly needed good publicity—and they got it.

Trapper, ferryman, hunting guide and Mexican War veteran Beaver Dick Leigh lived an active and colorful life on both sides of the Tetons in the mid and late 19th century. Leigh, Jenny and Beaver Dick—now String—lakes in Jackson Hole are named for him and for his first wife, an Eastern Shoshone from Washakie’s band.

Thirty or more people were killed Sept. 27, 1923, when a Chicago, Burlington & Quincy passenger train nose-dived into Cole Creek from a washed-out bridge 16 miles east of Casper, Wyo. It was the worst train wreck in the state’s history. Some of the bodies were never recovered.

The 1880s cattle boom seemed to promise a rich future for Alexander Swan, who amassed 4.5 million acres in southeastern Wyoming to graze 100,000 head. His extravagant tenure ended quickly—but the ranch lasted generations.

As an agricultural depression swept Wyoming, one of Powell’s banks temporarily closed. The owner of a second, S.A. Nelson, ordered tellers to stack cash in plain sight to calm jittery depositors. Thirty-six banks failed in Wyoming in 1924 alone. Confidence eventually returned—but only very slowly.

First described in 1842 by explorer John C. Fremont, Warm Springs, near present Guernsey, Wyo., is one of the most famous water holes on the Oregon-California Trail. Many emigrants stopped here to rest, bathe, wash clothes and carve their names on nearby sandstone bluffs.

On Oct. 5, 1857, a band of Mormon militia attacked U.S. Army supply wagons at Simpson’s Hollow west of what’s now Farson, Wyo., burning 26 wagons and stampeding army mules. The army was advancing on Utah to enforce federal law there, and the Mormons resisted—all part of the bloodless Utah War.