Following up on his Bancroft Prize–winning Killing for Coal: America’s Deadliest Labor War (2008), Thomas G. Andrews brings us Coyote Valley: Deep History in the High Rockies, an environmental history of the Kawuneeche (Nuche for Coyote) Valley, located next to the source of the Colorado River in the western zone of Rocky Mountain National Park. Following the approach prescribed by Donald Worster in The Wealth of Nature: Environmental History and The Ecological Imagination (1993), Andrews opens with the geological and natural history of the region. He then proceeds chronologically through Native culture and land use, Nuche responses to ecological change and conquest, settler land use practices, recreational use, the creation of a national park, and later efforts to improve or restore ecosystems. Scholarship in recent years detailing Native responses to the arrival of the horse, particularly in works such as Pekka Hämäläinen’s The Comanche Empire (2008) and Elliott West’s The Contested Plains: Indians, Goldseekers, and the Rush to Colorado (1998), emphasizes how the Comanche, Cheyenne, Sioux, and others embraced specialization, becoming overly dependent on horses and bison. In telling the story of the Nuche, Andrews shows a people choosing a more traditional path and persisting longer than those who embraced radical change. While adopting the horse for trade and hunting bison, Nuche retained their historical use of the variety of resources available throughout their range. This commitment to the varied use of a complex landscape allowed them to remain in the Kawuneeche into the 1870s. In the end, their pragmatic adjustments could not protect them; they were forcibly removed to make way for settlers.