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USGS Quad Index |
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USGS Quad Index There are numerous forms of the USGS quad map index on the web. For the convenience of MapInfo users, the following links are provided here as .mif and .mid file formats. Western US - 7.5 Minute Index (817 KB zipped) Eastern US - 7.5 Minute Index (853 KB zipped) If you are looking to locate quad names off-line, check www.usgsquads.com Don't forget to check out other data sources such as:
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