17,779
Total stations
Streamflow data, gauge heights, and temperature readings for streams, rivers, lakes, and reservoirs across the United States.
Live Network
Real-time data collected from USGS monitoring stations across all 50 states.
17,779
Total stations
2.4 M
Total measurements
20,162
Updates per hour
10
Flood alerts
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.