Idaho's Place Idaho's Place: A New History of the Gem State. Seattle: University of Washington Press, 2014. Publisher's Site Idaho Book Award (Honorable Mention) – Idaho Library Association, 2015
The Past and Future of the Columbia River With Paul W. Hirt, "The Past and the Future of the Columbia River," in The Columbia River Treaty Revisited: Transboundary River Governance in the Face of Uncertainty, ed. Barbara Cosens (Corvallis: Oregon State University Press, 2012), 115-36. past-and-future-of-the-columbia-river-hirt-sowardspast-and-future-of-the-columbia-river-hirt-sowards.pdf557 KBdownload-circle Publisher's Site
The Environmental Justice The Environmental Justice: William O. Douglas and American Conservation. Corvallis: Oregon State University Press, 2009. Publisher's Site Association for American University Presses Books for Understanding, U.S. Supreme Court, 2010
United States West Coast United States West Coast: An Environmental History. Santa Barbara: ABC-CLIO, 2007. Publisher's Site Choice Outstanding Academic Title, 2008
William O. Douglas: The Environmental Justice "William O. Douglas: The Environmental Justice," in The Human Tradition in the American West, eds. Benson Tong and Regan A. Lutz (Wilmington, DE: Scholarly Resources, 2002): 155-70. Reprinted in The Human Tradition in America: 1865 to the Present, edited by Charles W. Calhoun, (Wilmington, DE: Scholarly Resources, 2003)
Spiritual Egalitarianism "Spiritual Egalitarianism: John Muir's Religious Environmentalism," in John Muir in Historical Perspective, ed. Sally M. Miller (New York: Peter Lang Publishing, 1999): 123-36. sowards-spiritual-egalitarianismsowards-spiritual-egalitarianism.pdf1 MBdownload-circle