U.S. Environmental Protection Agency Office of Research and Development, Center for Environmental Research Information, Robert S. Kerr Environmental Research Laboratory
in cooperation with the Wyoming Department of Agriculture (WDA), the Wyoming Department of Environmental Quality (WDEQ), and the Fremont County Weed and Pest District
in cooperation with the Wyoming Department of Agriculture (WDA), the Wyoming Department of Environmental Quality (WDEQ), and the Laramie County Conservation District