Decker Mountain
Feature Type:Mountain - Mass of land prominently elevated above the surrounding terrain, bounded by steep slopes and rising to a summit and/or peaks.
Status: Official
Name Authority: BC Geographical Names Office
Relative Location: Just SE of Blackcomb Peak, SE of Whister in Garibaldi Provincial Park, New Westminster Land District
Latitude-Longitude: 50°04'09"N, 122°51'14"W at the approximate centre of this feature.
Datum: WGS84
NTS Map: 92J/2
Origin Notes and History:

Adopted 27 August 1965 on 92J as submitted by Dick Culbert, author of Climber's Guide to the Coastal Ranges of British Columbia.

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

A descriptive name: this massif has a two-decked layer form and possesses a very flat, deck-like top; the suffix "er" was used for purposes of euphony. (December 1964 letter, file P.1.65)

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