Institute on Lake Superior Geology, 35th Duluth, 1989: part 2, field trip guidebook  /  organized by Richard W. Ojakangas [and others]
Contributors: Ojakangas, R.W.
Series: Institute on Lake Superior Geology 35 pt.1
Publisher: Institute on Lake Superior Geology
Place of publication: Duluth
Language: eng
Number of pages: 104
Subjects: Geology - Guidebooks - Minnesota; Geology - Guidebooks - Wisconsin
Notes: 11