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Filter: Subject of Formations (Geology)
Filter: County of Ashland
Filter: Type of Map or Atlas
| Date: | 1920 |
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| Description: | Shows geology, test pits, shafts, houses, and the Mellen Lumber Co. Ry. in Marengo township, Ashland County, Wisconsin. "This is a preliminary map issued i... |
| Date: | 1886 |
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| Description: | This map shows north and south ore veins, landownership, railroads, rivers, and township grid in parts of Ashland County, Wis. and Ontonagon County, Mich. ... |
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