River CO

East Boulder Ditch

Colorado • 39.9965, -105.2158

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

2 mi

4 km

Elevation

5,294′ → 5,221′

73 ft drop

Stream Order

Medium River

Slope

0.63%

33.2 ft/mi

Drainage

159 mi²

411 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

7 mi

11 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