Chehalis Lake is a lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 on the Chehalis River

Chehalis River (British Columbia)

The Chehalis River is located in the southwest corner of British Columbia, Canada near the city of Chilliwack. It flows south-eastward out of the Douglas Ranges of the Coast Mountains, draining into the Harrison River....

 in the Lower Mainland

Lower Mainland

The Lower Mainland is a name commonly applied to the region surrounding and including Vancouver, British Columbia, Canada. As of 2007, 2,524,113 people live in the region; sixteen of the province's thirty most populous municipalities are located there.While the term Lower Mainland has been...

 of southwestern British Columbia

British Columbia

British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. The lake and the river share the name with the community of Chehalis, British Columbia

Chehalis, British Columbia

Chehalis, British Columbia is a small forestry, agricultural and First Nations community in the Lower Mainland of British Columbia located on Highway 7 on the west bank of the Harrison River between the town of Mission and the resort community of Harrison Hot Springs.Chehalis is the site of...

, which is the home of the Sts'Ailes

Sts'Ailes

The Sts'ailes are a First Nations people in the Lower Mainland of the Canadian province of British Columbia. They are a Halqemeylem-speaking people but are distinct historically and politically from the surrounding Sto:lo peoples...

 people, a Halqemeylem-speaking Coast Salish

Coast Salish

Coast Salish languages are a subgroup of the Salishan language family. These languages are spoken by First Nations or Native American peoples inhabiting the territory that is now the southwest coast of British Columbia around the Strait of Georgia and Washington state around Puget Sound...

 group. Their name Sts'Ailes is said to mean "beating heart"; the similarly named Chehalis, Washington

Chehalis, Washington

Chehalis is a city in Lewis County, Washington, United States. The population was 7,259 at the 2010 census. It is the county seat of Lewis County.-History:...

 and Chealis River in that area have a different meaning in the Chehalis language - "sand".