Keywords: PortlandQuarry.jpg Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html en wikipedia Gerardus CommonsHelper 2007-11-12 Wilson44691 wikipedia en Wilson44691 original upload log page en wikipedia PortlandQuarry jpg 2007-11-12 03 31 Wilson44691 1600×1200× 247198 bytes <nowiki>Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html</nowiki> Portland stone |