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The 'North Star Mine' file is part of the Grover Heinrichs mining collection. Grover was the Vice President of Heinrichs GEOEXploration, located in Tucson, Arizona. The collection contains over 1,400 folders including economic geology reports, maps, photos, correspondence, drill logs and other related materials. The focus of much of the information is on the western United States, particularly Arizona, but the collection also includes files on mining activity throughout the United States, foreign countries, and 82 mineral commodities.
    map background search result map search result map North Star, I.P. Traverse Line No. 1 North Star, I.P. Traverse Line No. 3 North Star Mine, Trench Locations North Star, I.P. Base Map North Star, I.P. Survey Location North Star South, I.P., Line No. 2, Spread 1 North Star, I.P. Traverse Line No. 2 North Star South, I.P., Line No. 3, Spread 1 North Star, I.P. Traverse Line No. 2 North Star South, I.P., Line No. 1, Spreads 1 and 2 North Star, I.P. Survey Location North Star, I.P. Traverse Line No. 3 North Star, I.P. Base Map North Star, I.P. Traverse Line No. 1 Grover Heinrichs mining collection: North Star Mine