River MT

Boulder River

Montana • 46.0224, -111.0152

Length

66 mi

107 km

Elevation

9,333′ → 3,998′

5,335 ft drop

Stream Order

5

Medium River

Slope

1.52%

80.5 ft/mi

Drainage

474 mi²

1,228 km²

Avg Flow

-- cfs

1.1 mph velocity

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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