River CO

San Luis Valley Irrigation Drain

Colorado • 37.7270, -105.9373

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

20 mi

33 km

Elevation

7,606′ → 7,528′

78 ft drop

Stream Order

Major River

Slope

0.07%

3.8 ft/mi

Drainage

1,800 mi²

4,662 km²

Avg Flow

-- cfs

2.8 mph velocity

Path to Mouth

29 mi

47 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