Document describing a collection of records held at the Iron Range Research Center consisting of reports and data collected by Ralph A. Abercrombie that document the operation of the Hill Annex Mine
Iron Range Research Center, 1005 Discovery Drive, Chisholm, Minnesota 55719
Rights Management
Use of the records described by this document is governed by U.S. and international copyright law. Please contact the Iron Range Research Center, Chisholm, MN for more information in regard to this material, online at http://www.mndiscoverycenter.com/research-center/archive
