The Permafrost Map for Northwestern Canada (Mackenzie Region) is a digital version of the 1:1,000,000 map produced by Heginbottom and Radburn [Heginbottom, J.A. and Radburn, L.K. (compilers) 1992. Permafrost and ground ice conditions of northwestern Canada; Geological Survey of Canada, Map 1691A, scale 1:1 000 000.] The map provides information on permafrost distribution and ground ice conditions in the Mackenzie Region of northwestern Canada. The data set comprises three data layers: maps of permafrost zones, rivers, and lakes. The map themes (layers) are in the ESRI Shapefile spatial data format (ArcView files). The permafrost map codes continuous, discontinuous, intermediate, sporadic, and isolated permafrost, and glaciers. Data are available via ftp