Fireboy

Question on Fisher Chimney. From the top is it required to rappel down onto Salmon Glacier? Maybe I climbed to the wrong spot, but it appeared the glacier was far below any part of the Shuksan Arm? From the spot I topped out at I didn't see any leftover slings or belay/rappel stations. I found the first gully leading up to a tree with a bunch of slings about 1 rope length in distance from snow. Then I couldn't find a chimney that appeared to have heavy traffic. Any details on this route would be awesome.