“The idea of the frontier runs so deep in American culture that we internalize the idea that to find nature—real nature—you have to get in your car and drive out of town.” NatureUrbanismFrontier Book:A Natural History of Empty Lots: Field Notes from Urban Edgelands, Back Alleys, and Other Wild Places Source: A Natural History of Empty Lots: Field Notes from Urban Edgelands, Back Alleys, and Other Wild Places