Depths shown by isolines and soundings. Relief shown by contours and spot heights. Shipping list no.: 2014-0027-S. "Soundings in feet." Inset: Hancock and Houghton Michigan. Scale 1:10,000. Includes source diagram and table of low water datum for Lake Superior.
OCLC:
(OCoLC)873848278
Locations:
OVUX522 -- University of Iowa Libraries (Iowa City)
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.