Terrestrial Ecozones, Ecoregions and Ecodistricts for the Provinces of British Columbia, Alberta, Saskatchewan and Manitoba

Canadian Forest Service; Prairie Farm Rehabilitatio; Agriculture and Agri-Food Canada, British Columbia Land Resource Unit, Vancouver; British Columbia Ministry of Environment, Land and Parks, Victoria; British Columbia Ministry of Forests, Research Branch, Victoria; Agriculture and Agri-Food Canada, Alberta Land Resource Unit, Edmonton; Environmental Protection Forestry Branch;Alberta Agriculture, Food and Rural Development Branch, Edmonton; Cottonwood Consultants, Calgary; Agriculture and Agri-Food Canada, Saskatchewan Land Resource Unit, Saskatoon; Prairie Farm Rehabilitation Administration Regina; Saskatchewan Research Council, Saskatoon; Saskatchewan Environment and Resource Management, Regina; Agriculture and Agri-Food Canada, Manitoba Land Resource Unit, Winnipeg; Manitoba Department of Agriculture, Manitoba Soil Survey, Winnipeg; Manitoba Department of Natural Resources, Wildlife Branch, Winnipeg; Manitoba Department of Environment, Terrestrial Quality Management, Winnipeg