| Feature Type: | Lakes - Inland body of standing water. Plural of Lake. |
| Status: | Official |
| Name Authority: | BC Geographical Names Office |
| Relative Location: | NW of head of Esquimalt Harbour, W of Victoria, Highland Land District |
| Latitude-Longitude: | 48°28'03"N, 123°28'13"W at the approximate centre of this feature. |
| Datum: | WGS84 |
| NTS Map: | 92B/6 |
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Origin Notes and History:
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Thetis Lake adopted 1 May 1934 on National Defence sheet 415a, Victoria, as labelled on J.D.Pemberton's 1855 map "Southeastern Districts of Vancouver Island", and on Geological Survey sheet 20A, 1911, and on BC map 2A, 1913 et seq, and as identified in the 1930 BC Gazetteer. Name confirmed as "Thetis Lake" but feature type changed from "lake" (singular) to "lakes" (plural) 4 February 2003. Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office |
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Two distinct lobes, identified as discrete lakes by Recreational Fisheries Branch: Upper Thetis Lake (west) and Lower Thetis Lake (east); same naming scheme used in "Hiking Trails:Victoria and Southern Vancouver Island". Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office |
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Refers to H.M. frigate Thetis, on this station 1851-53 (see Walbran's "British Columbia Coast Names" for additional information) Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office |