The Digital National Map of the United States of America

on YouTube ↗15m

" summary

The USGS is delivering a nationwide digital base map suite: the geoportal beta and downloads at nationalmap.gov, derived products like U.S. Topo and 20,000 GeoPDFs posted since May 2009 (55,000 maps total on a three‑year rebuild cycle). Data layers include the National Hydrography Dataset and land cover, and 7,000 telemetered gauges feed an incident‑command tool that models contaminant travel to drinking‑water intakes. A revived volunteer program, National Map Corps, collects on‑the‑ground attributions (building use, names) to improve those datasets.

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" chapters (5)

1. 0:00Start
2. 2:39The National Map
3. 6:28Why Why the Usgs Is Involved in Mapping
4. 10:34Incident Command Tool
5. 13:07The National Map Corps

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