West Quincy Granite Quarry ID: 3623 | This file appears in: West Quincy Granite Quarry West Quincy Granite Quarry. Granite block at plant site believed to be base for compressor. | Creator: Henry Armstrong | Date: Nov. 1997 | Source: Montana State Historic Preservation Office | Rights: Public Domain Download Original File CreatorHenry ArmstrongSourceMontana State Historic Preservation OfficeDateNov. 1997RightsPublic Domain "West Quincy Granite Quarry" appears in: West Quincy Granite Quarry