The Western History Association announces the Hal K. Rothman Book Prize given annually for the best book in western environmental history defined in its broadest sense. The award consists of $500 and a certificate to the author, and a certificate to the press. The award is supported by contributions from individuals and publishers, and administered by the WHA. Publishers may submit more than one title from their list. In 2017 the prize changed from a biennial award to an annual award.
2018 | Terence Young for Heading Out: A History of American Camping (Cornell University Press, 2017)
2017 | Frederick Brown for The City is More Than Human: An Animal History of Seattle (University of Washington Press, 2016).
2015 | Andrew Needham for Power Lines: Phoenix and the Making of the Modern Southwest (Princeton University Press, 2014).
2013 | Lissa K. Wadewitz for The Nature of Borders: Salmon, Boundaries, and Bandits on the Salish Sea (Seattle: University of Washington Press, 2012).
2012 | Brian Frehner for Finding Oil: The Nature of Petroleum Geology, 1859-1920 (Lincoln: University of Nebraska Press, 2011).
2011 | Marsha Weisiger for Dreaming of Sheep in Navajo Country (Seattle: University of Washington Press, 2011).
2009 | Richard A. Walker for The Country in the City: The Greening of the San Francisco Bay Area (Seattle: University of Washington Press, 2008).
2007 | Robert Righter for The Battle Over Hetch Hetchy: America's Most Controversial Dam and the Birth of Modern Environmentalism (New York: Oxford University Press, 2006).