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The United States Geologic Survey has produced many different sorts of topographic maps throughout its history. There are three main sets of topographic maps currently in use:
The UO MAP Library has a complete collection of these sets.
In addition, we have historic collections of topographic maps of Oregon. The links below lead to complete inventories of these maps, which are available for inspection at the Document Center Reference Desk.
The MAP Library has an extensive collection of older USGS topographic maps of US Cities. Please ask at the Document Center Reference Desk or contact the MAP/GIS Librarian for more information.
Guide coming soon!