Θ Recreation: Boating: Paddling: Gauges

Site list:

Whitewater River Streamflow Data Links to realtime, mostly USGS streamflows for many Eastern US whitewater and recreational rivers.
West Virginia Gauges Information New, Gauley, Tygart, Potomac and Big sandy River using data from the Army Corps of Engineers and USGS.
United States NWIS-W Data Retrieval Access daily information from all the water level gauges in the US.
California Department of Water Resources Data Exchange Center provides current river conditions, stages, flows, river and tide forecasts, snowpack status, precipitation and snow information, satellite images, water supply and weather forecasts.
Colorado Basin River Forecast Center Forecasts, and information about rivers in the Colorado and eastern Great basins.
Water Levels Water level data focused mainly on the Western States.