Cascade River at At Marblemount
WA · USGS gauge 12182500
Discharge
561
CFS
7-day range
510–808
CFS
Catalog range
200–3,000
CFS · reference
Flood stage
6,000
CFS · catalog
Last 7 days
7-day low 510 CFS high 808 CFS
Source: USGS National Water Information System, gauge 12182500
Reading Jul 26, 6:45 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
- Flows into Skagit River
Reach data
- Gauge location: 48.5262, -121.4154
- Gauge data cadence: ~15-minute readings (USGS)
FAQ
- What USGS gauge measures the Cascade River at At Marblemount?
- USGS gauge 12182500. It reports discharge in cubic feet per second (CFS), typically updating every 15 minutes, published by the USGS National Water Information System.
- Where does the Cascade River flow?
- Per the Baseline Maps river catalog, this reach flows into Skagit River.
- 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 12182500 for you — set a CFS range for the Cascade River and get a push notification when the river enters it. Free for 14 days.
