Phil -
I fished the Snoqualmie a lot and had outstanding success for summer runs. Compared to other rivers, it was a ghost town. My best day was one short evening when I hooked four, landing three including what Dr.Conroy (who was walking his chocolate brown retriever along the river) and I thought to be a Raging River native buck. I didn't get to the river until after work and these four fish were hooked before darkness fell.
My best summer fish was a chrome 17 pound buck hooked in the fast water above the Tokul confluence. I lost another one day that was bigger, straightened an Alec Jackson Spey hook after an amazing battle.
There were a couple of local spoon guys that I became well acquainted with, some days we would take turns hitting nice fish in the same pool, fly vs. hardware.
I have seen them on redds in late spring between the falls and the cable hole, and they reproduce naturally in Raging, Tokul, Tolt and in the mainstem.
It was one of my favorites for years!