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River AK

Twentymile River

Alaska • 60.8460, -148.9890
Length
22 mi
36 km
Elevation
3,406′ → 3′
3,403 ft drop
Stream Order
5
Medium River
Slope
2.89%
152.7 ft/mi
Drainage
165 mi²
428 km²
Avg Flow
10 cfs
1.1 mph velocity
Path to Mouth
22 mi
35 km to ocean
Classification
Headwater
Source Stream
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. More
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Access Sites on Twentymile River

There are 4 boat ramps, launches, and public access points on Twentymile River.