This map shows PreCambrian rock samples collected by J.D.Godfrey during 1958, 1960, 1961 and 1963, which are stored at the Mineral Core Research Facility of the Alberta Geological Survey. Samples are available for inspection by appoint. The samples are classified and shown by rock type, i.e. granite, gneiss, metasedimentary, amphibolite, or unknown. A list of samples on which composite analyses were done is also given on the map.