BIG SIOUX R NEAR CASTLEWOOD,SD
USGSSouth Dakota (44.73155, -97.04465) · View on map
Current reading
29.4 CFS
Gauge height: 4.85 FT
Read 24 minutes ago · Oct 21, 2026 9:45 AM CDT
Flow history — last 6 days
No readings recorded in the last 6 days.
Runs on this gauge
No runs currently read this gauge.