Zumberge, James H.2010-09-132010-09-131952-12The Conservation Volunteer, November/December 1952https://hdl.handle.net/11299/93780One of a series of articles that appeared between 1947 and 1961 written by staff of the Minnesota Geological Survey and the University of Minnesota.Brief summary of the geology of Itasca State Park, Clearwater County, Minnesota. Headwaters of the Mississippi River. (Both this and the St. Croix park article were given the number 15).engeologystate parkMinnesotaMississippi riverArticle