Beautiful Carbon County in south-central Wyoming was established in 1868 and named for its coal. Since fur-trade days, through coal, copper, cattle, sheep, uranium, coal again, natural gas and wind power, booms, busts, and new booms have dominated the economy. The Union Pacific Railroad has by contrast offered a steadying influence, as has the state prison in Rawlins, the county seat. And the North Platte River, locals say, offers the best trout fishing in the world.