Hi BigIce,
If you are slayer you just catch big fish, species not so important
We have a great selection here - generally in lower elevations/east side of state (or 'front range') its similar to the back east (NY/NJ). So largemouth & smallmouth bass, walleye, perch, trout and catfish are available. As you get into the higher elevations we have some pike & salmon in the reservoirs, and lakes/streams are dominated by trout - lots of opportunity to catch rainbow, brown, brook, cutthroat, laker, and even golden trout.
If you ever have a chance to visit I highly recommend it