Unless otherwise noted below, the maps in this book are based on information in the public domain. All cartography is by the Canadian Plains Research Center at the University of Regina, except for the illustration which is by Joan A. Williams, and the map which is adapted from the Commission for Environmental Cooperation and the Nature Conservancy.
Temperate Grasslands of the World, adapted from R.T. Coupland, ed., Grassland Ecosystems of the World:
Analysis of Grasslands and their Uses (Cambridge: Cambridge University Press, 1979).
Temperate Grasslands and Savannas of Canada and the United States, adapted from Taylor H. Ricketts, et al., Terrestrial Ecoregions of North America: A Conservation Assessment (Washington, D.C.: Island Press, 1999).
Geography of the Great Plains, adapted from Antony R. Orme, ed., The Physical Geography of North America (New York: Oxford University Press, 2002).
Ecoregions of the Great Plains, adapted from Taylor H. Ricketts, et al., Terrestrial Ecoregions of North America: A Conservation Assessment (Washington, D.C.: Island Press, 1999).
Prairie Mountains, adapted from A.N. Strahler and J.H. Strahler, Modern Physical Geography (New York: John Wiley, 1978).
Major Air Masses Affecting the Great Plains, adapted from Reid A. Bryson and F. Kenneth Hare, eds., Climates of North America (New York: Elsevier, 1974).
Average Annual Precipitation on the Great Plains, data from esri ArcData Online, 2003.
Soils of the Great Plains, adapted from Anthony Joern and Kathleen H. Keller, eds., The Changing Prairie:North American Grasslands (New York: Oxford University Press: 1995).
Grassland Cover on the Great Plains, data from GeoInsight Corp.
River Systems of the Great Plains, data from GeoInsight Corp.
Woodlands and Savannas of the Great Plains Region, adapted from Taylor H. Ricketts, et al., Terrestrial Ecoregions of North America: A Conservation Assessment (Washington, D.C.: Island Press, 1999).
Major Crops of the Great Plains, adapted from Frederick W. Boal and Stephen A. Royle, North America: A Geographical Mosaic (London: Arnold, 1999).
Potential Areas for Large-Landscape Conservation on the Northern Great Plains, adapted from cec and tnc, North American Grassland Priority Conservation Areas: Technical Report and Documentation, J.W. Karl and J. Hoth, eds.(Montreal: Commission for Environmental Cooperation and the Nature Conservancy, 2005).
National and State/Provincial Parks on the Great Plains, data from Alberta Community Development, Saskatchewan Environment, and Manitoba Conservation, 2003, and University of California Santa Barbara Remote Sensing Research Unit, 1997.
The Great Plains, data from esri Data and Maps Media Kit and GeoInsight Corp.