Earlier this week President Obama created America’s newest National Monument, Colorado’s Chimney Rock, which supporters of preservation say could become a vital part of the state’s tourist economy. In naming Chimney Rock a monument, Obama was following in the footstep of Theodore Roosevelt, who became concerned about a rocky spire sticking out of the Black Hills in 1906. Using the new Antiquities Act, the Roosevelt declared Devil’s Tower to be a National Monument and, in so doing, created a new type of American park.