Geology & Natural History

How did a subtropical cattle ranching practice make it into Wyoming? Wyoming’s cattle ranching industry has deep roots in the Tamaulipas area of Mexico, the Carolinas, and Texas. Read more about how this system got established in Wyoming, who profited from it, and what happened when it met the harsh reality of Wyoming winters.

In the 1870s and 1880s, the cattle ranching industry in Wyoming operated mostly on neglect with one exception: the roundups. For most of the year, cattle were left to roam and graze untended. But twice a year, they were rounded up—sometimes as far as 100 miles away from their home ranch. Read more about the roundups on Wyoming’s Open Range.

On August 17, 1959, a 7.3 magnitude earthquake at Lake Hebgen, Montana, dramatically affected Yellowstone’s geysers 236 miles away. Giantess Geyser erupted for 100 hours straight, 289 springs became geysers, and bears sought shelter with humans at Old Faithful Lodge. Read about this remarkable geological event.

Forty years ago, Cheyenne experienced one of the most catastrophic natural disasters in Wyoming’s recorded history. The devastating flood claimed the lives of twelve people, the youngest of whom was only 3 years old, and forever altered the landscape of Wyoming’s capitol. Read more about the most damaging flood in Wyoming history.

“Why not eat insects?” Jim Wangberg asked this in 1987, and it set off more than a classroom discussion. At the time, Wangberg was department head of plant, soil and insect sciences at the University of Wyoming. His question was particularly pressing following Wyoming’s big grasshopper years in 1985 and 1986, with densities of up to 100 grasshoppers per square yard in some locations. That many grasshoppers can devastate an agricultural based economy.

Whoopup Canyon, a system of roughly 150 rock art panels along a four-mile stretch of Dakota sandstone in northeast Wyoming, is a special place. Its petroglyphs, mostly images of game animals, are among the most extensive and among the oldest in North America.

One fine summer morning in 1871, the sailboat Annie launched from the north shore of Yellowstone Lake—the first known boat to traverse its waters. Read more about this exciting chapter of the epic Hayden Geological Survey in Jett B. Conner’s article, The Annie.

Since the late 1940s, birders in Casper and around the state have pursued annual Christmas bird counts, providing reams of data for a fast-changing world. Rising early and working late, birders live to listen, watch and learn—and the birds keep flying.

No landscape is beyond the reach of history. The wilderness of the Absaroka Mountains, bordering the west side of Wyoming’s Bighorn Basin, is no different. Evidence of early mining activity still endures in isolated pockets, and searchers can still find cabin ruins, tailings and a few crumbing tunnels.

Historian, botanist, teacher and rancher Vie Willits Garber grew up in Big Horn and in 1910 earned a master’s degree in two disciplines from the University of Wyoming. She was the first person to carefully map and document the route of the Bozeman Trail—and she identified and listed 615 plants in the Little Goose Valley near her family’s home.