Spotted Lake
Lake Kliluk (Nsyilxcən: Kłlil’xᵂ)
Spotted Lake
Location	Northwest of Osoyoos, British Columbia
Coordinates	49°04′41″N 119°34′01″W / 49.07806°N 119.56694°W / 49.07806; -119.56694
Type	Saline, alkali, endorheic basin
Primary outflows	Terminal (evaporation)
Basin countries	Canada
Max. length	0.7 km (0.43 mi)
Max. width	0.25 km (0.16 mi)
Shore length1	1.7 km (1.1 mi)
Surface elevation	573 m (1,880 ft)
1 Shore length is not a well-defined measure.

Spotted Lake — known as Lake Khiluk^[1] (Nsyilxcən: Kłlil’xᵂ) in the Nsyilxcən language — is a saline endorheic alkali lake located northwest of Osoyoos in the eastern Similkameen Valley of British Columbia, Canada, accessed via Highway 3.^[2]

Spotted Lake is richly concentrated with various minerals. It contains dense deposits of magnesium sulfate, calcium and sodium sulphates. It also contains high concentrations of eight other minerals and lower amounts of silver and titanium.^[3]

Most of the water in the lake evaporates over the summer, revealing colourful mineral deposits. Large "spots" on the lake appear and are coloured according to the mineral composition and seasonal amount of precipitation.^[3] Magnesium sulfate, which crystallizes in the summer, is a major contributor to spot colour. In the summer, remaining minerals in the lake harden to form natural "walkways" around and between the spots.

Originally named in the Nsyilxcən language of the Syilx Okanagan Nation of the Okanagan Valley as Kłlil’xᵂ, Spotted Lake was for centuries, and still remains, revered as a sacred site thought to provide therapeutic waters.^[3] During World War I, the minerals of Spotted Lake were used in manufacturing ammunition.^[2]

Later, the area came under the control of the Ernest Smith Family for a term of about 40 years. In 1979, Smith attempted to create interest in a spa at the lake. The First Nations responded with an effort to buy the lake, then in October 2001, struck a deal by purchasing 22 hectares (54 acres) of land for a total of $720,000, and contributed about 20% of the cost. The Indian Affairs Department paid the remainder.^{[citation needed]}

Today, there is a roadside sign telling visitors that the lake is a cultural and ecologically sensitive area, and a traditional medicine lake for the Okanagan Syilx people. The lake can be viewed from the fence that has been erected for protection from the liabilities of public access.

• List of lakes of British Columbia

Wikimedia Commons has media related to Spotted Lake.

• Spotted Lake: Something out of a Doctor Suess Book?
• Flickr: People walking on the lake.
• Renaut, Robin W.; Long, Peter R. (1989). "Sedimentology of the saline lakes of the Cariboo Plateau, Interior British Columbia, Canada". Sedimentary Geology. 64 (4): 239. Bibcode:1989SedG...64..239R. doi:10.1016/0037-0738(89)90051-1.
• Camm, E. L.; Stein, J. R. (1974). "Some aspects of the nitrogen metabolism of Nodularia spumigena (Cyanophyceae)". Canadian Journal of Botany. 52 (4): 719. doi:10.1139/b74-093.
• Jenkins, O. P. (1918). "Spotted lakes of epsomite in Washington and British Columbia". American Journal of Science. 46 (275): 638–644. Bibcode:1918AmJS...46..638J. doi:10.2475/ajs.s4-46.275.638.