USGS Maps - Update Log
| DATE | TASK | NOTES |
| 11-17-2015 | Completed a re-write of this page, which included Indexes in PDF file format and an interactive map with hyperlinks to pages from which users can view the map, scale, and year of their choosing. | |
| 07-10-2014 | Added link to the USGS Historical Topographic Map Explorer interactive map | |
| 05-20-2014 | Added interactive map to view USGS Maps / Historical, thru 2010. Moved PDF files and SID files to folders under Maps/MapsU/USGS. Added this page and the link to it. | |
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