Streamflow · USGS
Flows
live discharge from the U.S. Geological Survey, gage by gage
Open a gage
Try "san lorenzo" or "colorado river". For an exact match, paste a USGS site number.
Active gages
Find a gage on the map
Pan and zoom; markers show active USGS streamgages with discharge data. Click one to open.
Favorites
Saved gages
Click any card to open. Saved locally to this browser.
Discharge · live
—
—
Today
—
cfs
—
—
Hydrograph
Discharge over the last 30 days
Period mean
—cfs
Compared to long-term median
—
Long-term median
—cfs
Loading flow data…
this period
historical median, this date
computing seasonal context from the full record…
Peak flow timeline
Annual peak discharge
One mark per water year — the highest discharge of the year,
drawn from USGS records.
Looking up annual peak flows…
Location
—
