Basically there are 2 ways to fish Kootenay Lake in the cold/dark season which is now until late April.
For the big rainbows you can flatline 5 - 6" bucktails using non-stretch braided lines with a short 10 or 12 lb mono leader about 100m behind the boat or a bit less if using side-planer boards. South winds seem to be best with some waves and troll about 3 mph. I have found the really dark colored flies most effective in winter and tie my own with blue/ purple/black colors and some pearl Flashabou that extends about 1/2" behind the hair. Before you put your fly in the water, comb out any tangles so the hair will move easily in the water and tie it on with a loop knot rather than a tight connection. You will rarely catch a bull trout this way. Pump the rod occasionally so the fly darts forward then slows down - it triggers strikes.
If targeting bull trout with the possibility of a rainbow then troll downriggers starting at 30' and working down to as much as 150' and go 1.2 - 2.5 mph. Lyman plugs, flasher with glow hootchy, Apex, etc. with or without flashers work well (I personally hate flashers but they work well). Run the lures from 25 - 100 ' behind the ball but spaced vertically so they won't tangle if using 2 or more downriggers. If less than 50 ' depth then my favorite lure is the black/purple Lyman plug. If deeper than that then go for a light color and even a glow paint job. The bull trout seem to really like glow colors.
We rarely see suspended fish at any depth when trolling - other than schools of Kokanies at 150 - 250' depths. Once in a while something at less than 100' but that is rare. The big guys seem to be very boat shy and I believe they are usually at 30' depth or less and that is why we don't see them on the sonar.
Good luck and watch out for dangerous weather changes...
Last edited by BPman; 11-02-2013 at 01:15 PM.
Reason: additional info
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