Alder Island
Feature Type:Island - Land area surrounded by water or marsh.
Status: Official
Name Authority: BC Geographical Names Office
Relative Location: In Carp Lake, SW of McLeod Lake (community), Cariboo Land District
Latitude-Longitude: 54°45'50"N, 123°22'07"W at the approximate centre of this feature.
Datum: WGS84
NTS Map: 93J/14
Origin Notes and History:

Adopted 25 October 1978 on 93J, as submitted by Parks Branch; each of the islands in the lake have been named for trees found in the area.

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