The Borderlands of the American and Canadian Wests is the first collection of interdisciplinary essays bringing together scholars from both sides of the forty-ninth parallel to examine life in a transboundary region. The result is a text that reveals the diversity, difficulties, and fortunes of this increasingly powerful but little-understood part of the North American West. Contributions by historians, geographers, anthropologists, and scholars of criminal justice and environmental studies provide a comprehensive picture of the history of the borderlands region of the western United States and Canada. The Borderlands of the American and Canadian Wests is divided into six parts: Defining the Region, Colonizing the Frontier, Farming and Other Labor Interactions, the Borderlands as a Refuge in the Nineteenth Century, the Borderlands as a Refuge in the Twentieth Century, and Natural Resources and Conservation along the Border. Topics include the borderlands’ environment; its aboriginal and gender history; frontier interactions and comparisons; agricultural and labor relations; tourism; the region as a refuge for Mormons, far-right groups, and Vietnam War resisters; and conservation and natural resources. These areas show how the history and geography of the borderlands region has been transboundary, multidimensional, and unique within North America.