The contents of this Open File were first released as a poster display at the Mineral Exploration Roundup of the British Columbia and Yukon Chamber of Mines, 26th-29th January 2004 in Vancouver, and subsequently, after some modifications and additions, as a poster at the annual convention of the Prospectors and Developers Association of Canada, March 7th-10th 2004 in Toronto. This CD-ROM contains three files: of4668_Poster.pdf The poster, as presented at the Prospector and Developers Association of Canada Convention, March 7th-10th 2004 in Toronto, in PDF format. The original size of the poster was 130 cm (51 inches) high by 211 cm (83 inches) wide but may be reproduced at about 65% of this size without loss of legibility on 36 inch wide paper. of4668ps.zip A compressed Postscript 1 file of the poster. Most drum plotters require this Postscript file as input. of4668_Report.pdf The same content as on the poster, but with minor additions to the text and in figure captions, that has been re-formatted as a 20 page report. This report may be printed on letter-size paper by a normal colour printer, and therefore may be the more convenient way for most users to obtain a hard copy of this Open File. Note that the PDF file has been formatted for double-sided printing. Single-sided printing will result in some blank pages at the beginning and end of the report.