Idaho Fish Report

Keno Dam to J.C Boyle Reservoir

This section is closed until Oct. 1 to protect redband trout during the summer when water temperatures are excessively high.

J.C. Boyle Dam to J.C Boyle Powerhouse

Flows are low and stable and fishing is good. Fishing is best below the spring inputs. The springs start to discharge into the river approximately one mile below J.C. Boyle Dam. This section of river requires a hike down steep grade to the river with the exception of the area just above the powerhouse. Water temperatures in this reach are much higher this time of the year due to this reach being dominated by springs. There is good access at the powerhouse. Park and walk upstream. This area is fished hard but you can hike to get away from the pressure. Hiking or wading upstream is difficult. Small stimulators work well in this section.

J.C. Boyle Powerhouse to State Line with California

Best fishable flows will be available in the very early mornings and on some days the late evening. Look for the various caddisfly hatches in the early afternoon. Fishing success can be good depending on how flows are managed. Best fishing is when flows are less than 900 cfs. Flow estimates have started. Click this link to access PacifiCorp Flow Estimates

Large attractor flies such and wooly buggers and rubber leg stoneflies work best. Large stimulators and caddisfly dry fly patterns can work well casted to the shoreline. Crayfish imitations are also productive. Black spinners and Panther Martins can also work. Below the JC Boyle Powerhouse the redband-rainbow trout get slightly larger than the aforementioned reach and average 12-inches but rarely exceed 16-inches. Currently, most redband caught are in the 10- to 14-inch range.