http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (iv, 41 pages, 1 page of plates) : maps (some color).
Title from title screen (viewed August 4, 2014).
"A description of the stratigraphy, lithology, general geology, and mineral resources of a structurally complex 100-square mile island near Ketchikan, Alaska."
Includes bibliographical references (pages 37-38) and index.
Gravina Island (Ketchikan Gateway Borough)