You might check out the lower mile or two of the Illinois. In past years, when there is a water temp differential between the two rivers, both salmon and steelhead would move temporarily into the Illinois. You'll have to crawl up to the water...it is gin clear. I've caught them on flies before...then you have to rest the pool. I've often thought that a bobber and eggs...or jig woould be a good way to catch them in the slower pools