Big Onion Lake
| Feature Type: | Lake - Inland body of standing water. |
| Status: | Official |
| Other Names: | Jididẑay |
| Name Authority: | BC Geographical Names Office |
| Relative Location: | E side Taseko River, E of Nemaiah Valley, Lillooet Land District |
| Latitude-Longitude: | 51°24'28"N, 123°38'00"W at the approximate centre of this feature. |
| Datum: | WGS84 |
| NTS Map: | 92O/5 |
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Origin Notes and History:
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Adopted 20 October 1981 on 92O and 92O/5, as identified in Fish and Wildlife files since 1973. Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office |