River CO

Rito Oso

Colorado • 37.7057, -105.4167

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

6 mi

10 km

Elevation

11,529′ → 8,429′

3,100 ft drop

Stream Order

Medium River

Slope

9.37%

494.5 ft/mi

Drainage

5 mi²

12 km²

Avg Flow

-- cfs

0.9 mph velocity

Path to Mouth

1,286 mi

2,070 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