Data Portals

dataretrieval provides functions to retrieve data from several data portals. The table below lists those portals and their web addresses.

Data Portal	Uniform Resource Locator (URL)
National Water Information System	https://waterdata.usgs.gov/nwis
USGS Samples	https://waterdata.usgs.gov/download-samples/
Streamstats	https://streamstats.usgs.gov
Water Quality Portal	https://waterqualitydata.us
Water Services	https://waterservices.usgs.gov