According to our records, this business is located at 3273b Rocky Water Ln. in San Jose (in Santa Clara County), California 95148, the location GPS coordinates are: 37.3128361 (latitude), -121.8072736 (longitude). Gem Hill Mining Company is categorized under Precious Metals (SIC code 5094). Known organization president is Cecilia Fabos-Becker. You can contact the company by phone at (408) 223-6102.