salmotrutta

Evening/nightfall by far the most productive time, worms will do the trick.

Usual spots: beaver dams, deep pools adjacent to fast running water.

During the day, you have to drift your worm right under the beaver dam, as though you were trying to snag yourself in the brush. Usually the brownies are nice enough to prevent the snag from happening as they gobble it down. 

Undercut banks are also a good target during the morning/day, but be sure to sneak up very carefully, and cast from as far away from the bank as you can. 

Really? I just thought it was a jack male chinook??

That would also make sense. The rosy cheek is throwing me off. 

Did it do rodeo flips while you were reeling it in?

Pic 2 looks like a coho.

Tail is entirely spotted, but I don't think that precludes it from being a coho.

Water was down to single digits along much of Lake O's north shore after the strong W wind a couple of weeks ago. 

It's back up now. If the front today/tomorrow is strong enough to upwell the frigid water along the shoreline again, I think it would help your cause!

I think ppl will be very tight lipped about trout spots in that area.

I've seen photos of jaw dropping sized browns from locals. I never really targeted trout in that area though so can't help you out. Had too much fun with bass, pike, walleye. 

You might need to do some bushwhacking, watch out for noxious weeds, fire ants and insects and good luck!