Creek ND

Thirtymile Creek

North Dakota • 46.5436, -102.4060

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

91 mi

147 km

Elevation

2,778′ → 2,260′

519 ft drop

Stream Order

Medium River

Slope

0.11%

5.7 ft/mi

Drainage

243 mi²

628 km²

Avg Flow

-- cfs

1.1 mph velocity

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