Shuswap Lakes

Shuswap Lake
Western reaches of Shuswap Lake
The three arms of Shuswap Lake
Location	South-Central British Columbia
Coordinates	50°59′N 119°1′W / 50.983°N 119.017°W / 50.983; -119.017Coordinates: 50°59′N 119°1′W / 50.983°N 119.017°W / 50.983; -119.017
Primary inflows	Adams River, Scotch Creek, Seymour River, Anstey River, Eagle River, Shuswap River (via Mara Lake/Sicamous Narrows), Salmon River
Primary outflows	Little River
Basin countries	Canada
Max. length	89 km (55 mi)
Max. width	5 km (3.1 mi)
Surface area	310 km2 (120 sq mi)
Average depth	61.6 m (202 ft)
Max. depth	161 m (528 ft)
Water volume	19.1 km3 (4.6 cu mi)
Residence time	2.1 years
Surface elevation	347 m (1,138 ft)
Islands	Copper
Settlements	(see article)

Shuswap Lake (pronounced /ˈʃuːʃwɑːp/) is a lake located in south-central British Columbia, Canada that drains via the Little River into Little Shuswap Lake. Little Shuswap Lake is the source of the South Thompson River, a branch of the Thompson River, a tributary of the Fraser River. It is at the heart of a region known as the Shuswap Country or "the Shuswap", noted for its recreational lakeshore communities including the city of Salmon Arm. The name "Shuswap" is derived from the Shuswap or Secwepemc First Nations people, the most northern of the Interior Salish peoples, whose territory includes the Shuswap. The Shuswap call themselves /ʃǝxwépmǝx/ in their own language, which is called /ʃǝxwepmǝxtʃín/, but the ethnonym’s original meaning is now lost.

Shuswap Lake consists of four arms, forming a shape reminiscent of the letter H. The four arms are called Salmon Arm (southwest), Shuswap Arm (west), Anstey Arm (northeast), and Seymour Arm (north). Shuswap Lake connects to Little Shuswap Lake via the Little River, which flows from the end of Shuswap Lake.

To the north-west it is fed by the Adams River, which drains Adams Lake. The Salmon Arm of Shuswap Lake connects to Mara Lake at the Sicamous Channel. The Shuswap River connects via Mara Lake. In the south-west the Salmon River flows into the lake at Salmon Arm. The Eagle River runs down from the Eagle Pass in the Monashees to enter the lake at Sicamous, in the east. The Seymour River empties into the northern end of the Seymour Arm. In addition to these rivers, numerous creeks feed the lake, including Scotch Creek, which runs south to the north shore of the main arm, near the community of the same name.