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Yellow Lake, Olalla, Osoyoos Mining Division, British Columbia, Canada

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Latitude & Longitude (WGS84): 49° 20' 18'' North , 119° 44' 38'' West
Latitude & Longitude (decimal): 49.33833,-119.74389
Köppen climate type:Dfc : Subarctic climate

Eocene vesicular trachyte and analcime-phonolite flows exposed in road cuts of Highway 3A along the lake.

Mineral List

14 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

33.9 - 56 Ma

ID: 685207
Penticton Group - Marron, Kettle River, Springbrook, Marama and Skaha Formations

Age: Eocene (33.9 - 56 Ma)

Stratigraphic Name: Marron Formation; Kettle River Formation; Springbrook Formation; Marama Formation; Skaha Formation

Description: Alkalic and calcalkaline volcanics

Comments: T. Hoy, B.N. Church, A. Legun, K. Glover, G. Gibson, B. Grant, J.O. Wheeler,K.P.E. Dunne, J. Cunningham, and P.J. Desjardins, 1994, Geological Compilation of the Kootenay Area, OF 1994-8, BCGS

Lithology: Undivided volcanic rocks

Reference: B.C. Geological Survey. British Columbia Digital Geology. [3]

201.3 - 252.17 Ma

ID: 3190239
Mesozoic volcanic rocks

Age: Triassic (201.3 - 252.17 Ma)

Lithology: Unclassified volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Tschernich, R. (1992): Zeolites of the World, p.51, 254, 281, 322, 360, 414, 440, 457, 524

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