markg: I have most of the published and gray literature dealing with the SRB. In an unpublished 1991 report to the U.S. Fish & Wildlife Service, Dr. Glenn Stewart mentions "The elevational range for the 40 localities is from 5200 ft. at Old Toll Road (#13) to 7920 ft. at Green Canyon (# 32)." [The numbers representing locality records.] He goes on to mention, "However, the highest elevation for a locality confirmed by a specimen or experienced observer is 7600 feet at Fish Creek (#6)."