I saw Upper Tier mentioned in the guide book, w/o any topo or route descriptions, but have never climbed there. It says there are a few .10 climbs and a couple sets of anchors on top of it. I walked up to check it out and it appeared to be slightly less steep than Tiger Cage but loaded with cracks. It did not appear to have any bolted face climbs like T-Cage. Probably 15+ crack lines. Looks like a good time.
While walking around when we first got there I made my way to far climbers right of Tiger Cage and could see the lake. The island was completely out of the water and you could have walked out to it. By the time we finished at Tiger Cage and drove over to the lake to get check out the island, the water had risen to needing a boat or possibly wading out. We scratched the plan and had beers on the dam. With the daily draining and pumping in/out of Wishon for hydro power it appears the best time to try for the island would be in the morning before the water level rises again.