Arctomys Cave
Feature Type:Cave - Natural subterranean chamber open to the surface.
Status: Official
Name Authority: BC Geographical Names Office
Relative Location: SW of Trio Mountain in Mount Robson Provincial Park, Cariboo Land District
Latitude-Longitude: 53°04'05"N, 118°53'55"W at the approximate centre of this feature.
Datum: WGS84
NTS Map: 83E/2
Origin Notes and History:

Adopted 14 November 1973 on 83 E/2. Named in association with Arctomys Valley.

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

Named in relation to Arctomys Valley, in turn so-named in 1911 because of the numbers of hoary marmots in the area (Expedition to Jasper Park, Yellowhead Pass and Mount Robson, by A.O. Wheeler, published in Canadian Alpine Journal, vol IV, 1912, p.24&25). The cave is described but not named in the same article. Mis-spelled (with possesive apostrophe) as "Arctomy's Cave" in Globe & Mail article: Canada's Deepest Cave Found in BC..., 26 September 1973 (file J.1.49). See also "Exploring Canada's Deepest Cave", Canadian Geographic magazine, Vol 90, No 1, January 1975, p4.

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

Arctomys Cave has 3496 metres of surveyed passages and is currently Canada's second deepest known cave at 536 metres (1608 feet) deep. (Wikipedia/April 2013)

Source: included with note