River CO

Cottonwood Extension Ditch

Colorado • 40.0635, -105.0212

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

10 mi

16 km

Elevation

5,067′ → 5,024′

43 ft drop

Stream Order

Medium River

Slope

0.08%

4.4 ft/mi

Drainage

723 mi²

1,872 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

9 mi

14 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