Suggested citation and version history for Bernknopf, R.L., Wein, A.M., St-Onge, M.R., and Lucas, S.B., 2007, Analysis of improved government geological map information for mineral exploration: incorporating efficiency, productivity, effectiveness and risk consideration: U.S. Geological Survey Professional Paper 1721, 45 p. with CD-ROM (also Geological Survey of Canada, Bulletin 593) [http://pubs.usgs.gov/pp/pp1721/]. Version 1.0 December 20, 2007 Released online at http://pubs.usgs.gov/pp/pp1721/ November 2007 Initial release in print form by USGS and GSC