River ID

South Fork Boise River - Anderson Ranch Reservoir

Idaho • 43.3996, -115.3666

Length

102 mi

164 km

Elevation

6,284′ → 3,219′

3,065 ft drop

Stream Order

Large River

Slope

0.57%

30.2 ft/mi

Drainage

1,274 mi²

3,300 km²

Avg Flow

1,200 cfs

2.1 mph velocity

Path to Mouth

904 mi

1,455 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

Monitor

Access Sites on South Fork Boise River - Anderson Ranch Reservoir

There are 5 boat ramps, launches, and public access points on South Fork Boise River - Anderson Ranch Reservoir.