Tue Jun 11, 2002 : PMU News Releases : Denton-Rawhide Gold Mine Cleans Up Solution Spill (more...) Tue May 28, 2002 : PMU News Releases : Pacific Rim Commences Diamond Drilling Program on ... (more...) In April 2002, Pacific Rim Mining Corp. merged with Dayton Mining Corporation to create a new exploration and development company with a tremendous exploration asset and ample working capital and ...