Digital Line Graphs of U.S. Streams for the EPA Clean Air Mapping and Analysis Program (C-MAP)
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下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C2231553171-CEOS_EXTRA.html
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资源简介：
This is a 1:2,000,000 coverage of streams for the conterminous United States.
This coverage was intended for use as a background display for the National
Water Summary program.
The stream layer was extracted from the 1:2,000,000 Digital Line Graph files.
Originally, each state was stored as a separate coverage. In this version, the
individual state coverages all have been appended.
[Summary provided by EPA]
提供机构：
CEOS_EXTRA
