11,539
Active stations
Streamflow data, gauge heights, and temperature readings for streams, rivers, lakes, and reservoirs across the United States.
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Live Network
Real-time data collected from USGS monitoring stations across all 50 states.
Trends
Largest rises in the last 24 hours, and stations above every annual peak we have on file.
Prior reading from 18 to 30 hours before the latest tip. Tips older than 6 hours are left off.
Latest reading above every annual peak we have on file, for series with at least 10 water years of peaks.
Popular
Major measuring points for streams, rivers, lakes, and reservoirs across the United States.
Major gauges along the Colorado and its lower basin.
Key Mississippi River measuring points from Midwest to the Gulf.
Connecting-channel and shoreline stations around the lakes.
Columbia, Willamette, and Snake River reference gauges.