Denis Cosgrove is professor in the department of geography at the University of California, Los Angeles. He is the author or editor of many books, including Mappings, Imagining Eden: Connecting Landscapes, and High Places: Cultural Geographies of Mountains and Ice. William L. Fox is a writer, independent scholar, and poet. He is also the author of Approaching Nowhere, Observing in an Occupied Wilderness and Oblivion.