Colorado's Rocky Mountains and Great Plains have lost national interest in favor of the large deposits of Pierre Shale that dwells deep beneath the soil. Pierre Shale is a fossiliferous, dark-grey rock formed 66 million years ago when the North American Inland Sea receded. Oil and gas companies, who want to frack, and opposing environmental groups are at odds in Colorado, and Latinos are being lured to both sides of the argument, as they make up a good chunk of the state's population.
