Mount Callaghan
Feature Type:Mount - Variation of Mountain: Mass of land prominently elevated above the surrounding terrain, bounded by steep slopes and rising to a summit and/or peaks. ["Mount" preceding the name usually indicates that the feature is named after a person.]
Status: Official
Name Authority: BC Geographical Names Office
Relative Location: E of headwaters of Squamish River, NW of Whistler, New Westminster Land District
Latitude-Longitude: 50°13'39"N, 123°15'58"W at the approximate centre of this feature.
Datum: WGS84
NTS Map: 92J/3
Origin Notes and History:

Adopted 6 September 1951 on 92J, as labelled on 1929 map of Garibaldi area by A.J. Campbell, BCLS, in association with Callaghan Creek.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office