What is the current flow on Castle Creek?

Castle Creek was running 10 cubic feet per second as of Aug 1, 2026, 5:45 PM UTC, measured at USGS gauge 06410000. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Castle Creek

South Dakota. Streamflow and water-temperature readings from USGS gauges. Running 10 cfs as of Aug 1, 2026, 5:45 PM UTC.

Latest Reading

cubic feet / second

USGS gauges

Flow measured Aug 1, 2026, 5:45 PM UTC at gauge 06410000. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Castle Creek

Gauge	Station	Water temp?
06409000	CASTLE CR ABOVE DEERFIELD RES NEAR HILL CITY, SD	—
06410000	CASTLE CREEK BELOW DEERFIELD DAM, SD	—

Fly fishing rivers →South Dakota lakes →

Conditions: USGS NWIS (public domain).