Cheyenne’s M.H. “Bud” Robineau scrambled to put together the deals enabling construction during World War II of an airplane-fuel plant next to the Frontier Refinery he owned. Help from U.S. Sen. Joseph O’Mahoney proved crucial in cutting wartime red tape. The plant came online in 1944 and continued to produce high-octane fuel after the war.

From 1893-1913, the Tongue River Tie Flume carried 2 million railroad ties from the Bighorn Mountains to the Burlington Railroad. Ties moved at high speed down 38 miles of flumes across trestles and through tunnels in canyon walls. Workers’ camps were large mountain villages with schools and blacksmith shops.

If wells are the hearts, pipelines are the arteries of the oil business. Since the first line was laid 45 miles from the Salt Creek Field to Casper refineries in 1911, the pipeline business has grown steadily in Wyoming, transporting our hydrocarbons to local and world markets.

Civil engineer, librarian, athlete, professor and historian, Grace Hebard gained early power at the University of Wyoming, serving on its board of trustees and later its faculty over a 40-year career. Though many scholars now question her scholarship, she remains best known for her books on Wyoming’s past. 

Lora Nichols of Encampment, Wyo., got a camera for her 16th birthday in 1899 and kept snapping photos until her death at age 78. Her work leaves a vivid record of her time and place, and of her clear-eyed vision of the lives of her neighbors and kin.

Clabe Young came with his brothers from Texas to Wyoming Territory in the late 1870s and cowboyed for prominent ranchers including Tom Sun and Boney Earnest. The Young brothers fell under suspicion of rustling by the powerful Wyoming Stock Growers Association, whose leaders hired a Chicago detective, John Finkbone, to set the matter straight.

Seeking a shorter way to the goldfields of Montana Territory, former prospector John Bozeman traced a route through the Powder River Basin—prized buffalo grounds for the resident tribes. A few hundred emigrants used the route between 1863 and 1866; later, as tribal resistance grew, it became primarily a military road.

The voluble, gregarious Teno Roncalio of Rock Springs, Wyo., a Democrat, became a powerful and effective figure in the state’s political landscape, serving five terms in the U.S. House of Representatives during the 1960s and 1970s.

In 1864, Jim Bridger blazed a trail to the Montana gold fields. It stayed west of the Bighorn Mountains to avoid trouble with Indian tribes. Wagons traveled the full route only that year, but in later decades it became an important way into the Bighorn Basin for white settlers.

Two military posts were built a few miles apart during the Indian Wars near the strategic Bozeman Trail crossing of Powder River—Fort Reno in the 1860s and Cantonment Reno in the 1870s. The first was one of three forts whose existence provoked the tribes into war. The second was an important Army base for later campaigns.