When Frank Lorenti of Minturn, a rustic little burg down the road from the villageopolis of Vail in the Colorado mountains, put barbed wire up to keep snowmobilers off his property last winter, the town council responded by outlawing the spiked fencing altogether. Police chief Lorenzo Martinez agreed. "Considering the damage it could do, people don't think barbed wire is appropriate," he reported. "There are a lot of other types of fences to use."
No type of fence, however, tells a better story about the changing American West than barbed wire, a tool as key to the region's settlement as the...