Okanagan Lake - Kelowna 5.14

Okanagan Lake is a large, deep lake in the Okanagan Valley of British Columbia, Canada. The lake is 135km long, between 4and wide, and has a surface area of 348 km2.HydrographyOkanagan Lake is called a fjord lake as it has been carved out by repeated glaciations. Although the lake contains numerous lacustrine terraces, it is not uncommon for the lake to be 100 m deep only 10 m offshore. Major inflows include Mission, Vernon, Trout, Penticton, Equesis, Kelowna, Peachland and Powers Creeks. The lake is drained by the Okanagan River, which exits the lake's south end via a canal through the city of Penticton to Skaha Lake, whence the river continues southwards into the rest of the South Okanagan and through Okanogan County, Washington to its confluence with the Columbia.The lake's maximum depth is near Grant Island (Nahun Weenox). There is one other island known as Rattlesnake Island, much farther south by Squally Point. Some areas of the lake have up to of glacial and post-glacial sediment fill which were deposited during the Pleistocene Epoch.