Berg, H. C., Elliott, R. L., Smith, J. G., and Koch, R. L., 1978, Geologic map of the Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-File report 78-0073A, unpaged, 1 sheet, scale 1:250,000.
Citation Updated: 2010-04-23 23:15:12