1 online resource (4 maps on 3 sheets) : some color
General Note:
Relief shown by shading and/or gradient tints on 2 maps. Includes text, 9 colored cross sections, 2 tables, 11 diagrams, 1 ancillary map, 1 photo, and 2 location maps. "Prepared in cooperation with the Commonwealth Utilities Corporation, Commonwealth of the Northern Mariana Islands."