The Powder River Basin coal-bed methane boom in the early 2000s stirred controversies over land rights, mineral rights, environmental stewardship, the disposal of water and—at every turn—politics. Now, few of the 29,000 wells drilled produce much gas and around 3,000 wells are abandoned and left to the state to clean up.
Green River, Wyo., on its namesake river and on the Union Pacific Railroad, began as a stage station. After the U.P. relocated switching and roundhouse operations there in the early 1870s, the Green River rail yard became one of the busiest in the nation. Since the early 1900s, this county seat of Sweetwater County has weathered many booms and busts of nearby oil, gas and trona development, with the railroad and county government steadying its economy all the while.