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GIS Boundaries of NASQAN Watersheds |
There are 2 zipped and tarred files of the watersheds sampled by the U.S. Geological Survey NASQAN between 1996-2000. The first contains a site coverage and the complex watershed coverage. The second has shape files that include both individual watersheds and a single polygon shape file of the areas above each of the sites. Both data sets include the watershed areas in Mexico and Canada and are documented.
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Published data are also available for download at NWIS-web.
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