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The U.S. Geological Survey provides a variety of hydrologic and water-resource information. For real-time hydrologic (stream-gaging) data for many states and links to historical streamflow data and to weather information, see

U.S. Geological Survey

( http://water.usgs.gov/public/realtime.html )
The 1998 USGS report to Congress on the decline of stream-gaging stations is at

1998 USGS report to Congress on the decline of stream-gaging stations

( http://water.usgs.gov/streamgaging )
Discussion of the deliberate flooding of the Grand Canyon is found at

Discussion of the deliberate flooding of the Grand Canyon

( http://water.usgs.gov/public/wid/FS_089-96/FS_089-96.html )
The National Water Conditions site offers streamflow data (current) over the United States and southern Canada; it is a joint effort of USGS and Environment Canada's Climate Information Branch, at

National Water Conditions site

( http://water.usgs.gov/nwc )
Additional images and information on the Scientific Assessment and Strategy Team (SAST), formed to assess the 1993 Mississippi River basin flooding and to develop a long-term floodplain management plan, are found at

Scientific Assessment and Strategy Team (SAST)

( http://edc.usgs.gov/glis/hyper/guide/sast_dem )
Links to a variety of other information/sites on that flood are found at

Other Information/Sites on that Flood

( http://ghrc.msfc.nasa.gov/ )
The U.S. Army Corps of Engineers maintains a page with links to much information about the 1993 Mississippi flooding

U.S. Army Corps of Engineers

( http://pubs.usgs.gov/gip/ocoee/ )
Information about the 1997 Red River flooding is available at

Information about the 1997 Red River flooding

( http://srv1dndbmk.cr.usgs.gov/public/rrflood/rrflood.html )
Photographs of the 1997 Red River Flood

Photographs of the 1997 Red River Flood

( http://nd.water.usgs.gov/index/floodphotos.html )
The Great Salt Lake, which has no outlet streams, flooded badly in the 1980s; see

Great Salt Lake

( http://edcwww.cr.usgs.gov/earthshots/slow/GreatSaltLake/ )
The Dartmouth Flood Observatory at Dartmouth College has created a site through which information on and high-resolution images of floods since 1 January 1994 can be accessed at

Dartmouth Flood Observatory

( http://www.dartmouth.edu/artsci/geog/floods/index.html )
The Global Hydrology Resource Center maintains links to many stream-related information sites

Global Hydrology Resource Center

( http://ghrc.msfc.nasa.gov )
For a somewhat different site that describes the geologic history of the region through the evolution of the present stream system, see "Geologic Story of the Ocoee River"

Geologic Story of the Ocoee River

( http://www.usgs.gov/gip/ocoee2/ )







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