River CO

Sandy Arroyo

Colorado • 37.6980, -104.7140

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

7 mi

12 km

Elevation

5,908′ → 5,774′

135 ft drop

Stream Order

Medium River

Slope

0.34%

18.0 ft/mi

Drainage

64 mi²

165 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

1,244 mi

2,002 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

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

Rain Radar