River ID

Boulder River

Idaho • 46.0687, -112.0345

Length

84 mi

135 km

Elevation

7,251′ → 4,271′

2,980 ft drop

Stream Order

6

Large River

Slope

0.67%

35.6 ft/mi

Drainage

642 mi²

1,663 km²

Avg Flow

-- cfs

1.4 mph velocity

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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