River CA

Shag Slough

California • 38.3158, -121.6938

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

8 mi

12 km

Elevation

9′ → 3′

6 ft drop

Stream Order

Stream

Slope

0.02%

0.8 ft/mi

Drainage

13,620 mi²

35,275 km²

Avg Flow

-- cfs

0.6 mph velocity

Path to Mouth

27 mi

43 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Loading the interactive map…

Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar