For a while, it became the most profitable method of robbery in the Wild West. The transcontinental railroad had just been completed, uniting the country. Large sums of cash were being hauled around by rail to stock banks and mines with payroll money in the fast growing western territories. But the area was still sparsely populated. Robbers had plenty of isolated spots in which to ambush trains, and organizing a posse to chase the thieves was nearly impossible. Rugged landscapes provided countless hiding places. Even the infamous crime duo Butch Cassidy and the Sundance Kid got in on what seemed to be easy pickings.
But it was not to last. Train owners didn't like being robbed (imagine that). They began to protect their cargo with larger safes, armored boxcars and armed guards. The Pinkerton Detective Agency was hired to chase down the gangs, sometimes with men on horseback leaping from special train cars. By the late 1880s, the good times were over.
It ended a lot sooner for the Reno Gang. Three of the brothers were arrested after a train robbery in 1868 in which a guard was beaten to death. An enraged mob of vigilantes stormed the jail where they were being held and hung them.