Castlecrag Mountain adopted 7 October 1948 on 92F/11, not "Castle Crag" as submitted in 1935 by N.C. Stewart, BCLS, and as labelled on BC map 2A, 1938.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office
A descriptive name; Geographic Board felt that "Castle Crag" was too obscure, hence Castlecrag Mountain.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office