Cowlitz River at Castle Rock
WA · USGS gauge 14243000
Discharge
3,560
CFS
7-day range
2,680–5,190
CFS
Catalog range
1,200–12,000
CFS · reference
Flood stage
35,000
CFS · catalog
Last 7 days
7-day low 2,680 CFS high 5,190 CFS
Source: USGS National Water Information System, gauge 14243000
Reading Jul 26, 6:30 AM PDT
Catalog range and flood stage: Baseline Maps river catalog (reference data, updated with the app). USGS data is provisional and subject to revision.
Drainage
- Terminal reach in the catalog drainage graph.
- Receives Toutle River (Silver Lake)
Reach data
- Gauge location: 46.2753, -122.9097
- Dams on this reach (catalog): [object Object], [object Object], [object Object]
- Gauge data cadence: ~15-minute readings (USGS)
FAQ
- What USGS gauge measures the Cowlitz River at Castle Rock?
- USGS gauge 14243000. It reports discharge in cubic feet per second (CFS), typically updating every 15 minutes, published by the USGS National Water Information System.
- What do the fishable-range numbers on this page mean?
- They are reference figures from the Baseline Maps river catalog — a compiled low/high discharge range and flood stage for this reach. They are catalog data, not a recommendation; conditions, regulations, and safety are always the angler's own call.
Track this gauge with flow alerts.
Baseline Maps watches USGS gauge 14243000 for you — set a CFS range for the Cowlitz River and get a push notification when the river enters it. Free for 14 days.
