Idaho • South Fork Boise River
Fishing Report
Updated June 26, 2006
The river is running 3500 CFS which is a boatable flow for experienced drift boat anglers. Take your Salmon Flies and cross your fingers that you time this hatch. Expect changes in the river and be heads-up if you float here. Things will have definitely changed with the high water the past few weeks. Check the flows before you go as they have been changing often and could get pumped right back up if the reservoir gets topped off.
Location Information
Located about 70 miles from downtown Boise, the South Fork of the Boise River is a premier blue ribbon tailwater. Commercial guiding is not allowed on this river considered a “Trophy Fishery” by the Idaho Department of Fish and Game. Large wild rainbows inhabit this river with 95-99% of all rainbows caught by fisherman released back into the water. Wade fishing the river becomes possible when flows drop to about 600 CFS with “good wading” at 300 CFS.
Tattered Fly articles on Boise South Fork
Season & Regulations
General Season – Saturday of Memorial Day Weekend through November 30. No bait allowed. Barbless hooks required. 2 trout, none under 20”.
Winter Season – December 1 through March 31. Catch and release on trout. Whitefish may be harvested
Note: The section of the river from Arrowrock reservoir upstream to Neal Bridge is open all year for fishing with no special restrictions.
Fish Species
Wild Rainbow Trout, Bull Trout, Whitefish
How to get there
From Mountain Home take Highway 20 about 22 miles to Anderson Dam Road. Follow Anderson Dam Road about 8 miles until you cross the dam and turn left.
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