I recommend this map to anyone spending much time at all in the Park. I'll bet LRO carries it as does the GSMNP Association (all profits go back into the Park). It will have all the major creek names on it as well as a lot of other helpful information.

http://www.nps.gov/grsm/supportyourpark/bookstore.htm

I don't have my good map with me now, but CS# 98 is definitely Chambers. I think #77 is Pilkey.