Pakowki Lake

Pakowki Lake
Pakowki Lake, aerial photograph, August 2013
Location	County of Forty Mile No. 8, Alberta
Coordinates	49°18′24″N 110°54′18″W / 49.30667°N 110.90500°W / 49.30667; -110.90500Coordinates: 49°18′24″N 110°54′18″W / 49.30667°N 110.90500°W / 49.30667; -110.90500
Lake type	endorheic, slough
Primary inflows	Etzikom Coulee, Irrigation Creek, Erickson Coulee, Ketchum Creek, Canal Creek, Bond Coulee, Bryant Coulee
Primary outflows	none
Basin countries	Canada
Max. length	35 km (22 mi)
Max. width	8 km (5.0 mi)
Surface area	123 km2 (47 sq mi)
Surface elevation	860 m (2,820 ft)

Pakowki Lake is an endorheic lake in Alberta, Canada located south of Etzikom, Alberta and not far north is the former town site of Pakowki which may have received its name from the lake.

It is located in the prairies of southern Alberta, at an elevation of 860 metres (2,820 ft), in the County of Forty Mile No. 8. It is fed by a number of coulees and creeks, such as Etzikom Coulee, Irrigation Creek, Erickson Coulee, Ketchum Creek, Canal Creek, Bond Coulee and Bryant Coulee, and has no outflow. Reaching a maximum extent of 123 square kilometres (47 sq mi), it is one of the largest lakes in the province.

The name means "bad water" in Blackfoot language,^[1] named so for the bad smell caused by the lack of an outflow. While it is the largest water body in southern Alberta, its waters are intermittent, and it can be classified as a slough. In times of flooding, the lake overflows through a channel into the Milk River, which flows 6 kilometres (3.7 mi) south of the lake.

Conservation

The Pakowki Lake Provincial Bird Sanctuary is established on and around the lake, which provides congregations of waterfowl and waders, as a staging area for migration along the western flyway.^[2] The lake is designated an Important Bird Area (IBA) and listed by Bird Studies Canada and Bird Life International as globally significant^[3] but none of the lake has federal or provincial protected status.^[4]

Species of birds observed at the lake include double-crested cormorant, black-crowned night-heron, marsh wren, cinnamon teal and American bittern.^[5]

Mammals such as pronghorns, badgers, coyotes, striped skunks and porcupines are commonly found on the shores as well.

The lake lies in a sand dune-wetland environment of the Grassland biome. Flora on the lake shores consists of threatened Western Spiderwort (Tradescantia occidentalis), vulnerable Smooth Goosefoot (Chenopodium subglabrum), Great Basin Downingia and Skeletonweed (Eriogonum deflexum).^[6]

The lake contains no fish species.^[7]

Avian botulism

In high water years, the lake kills hundreds of thousands^[8] of birds due to avian botulism. Government studies conclude that nothing can be done to prevent the botulism.^[9][10]

References

Wikimedia Commons has media related to Pakowki Lake.

Hydrography of Alberta
Rivers	Athabasca Battle Beaver Bow Brazeau Crowsnest Elbow Hay Little Bow Milk North Saskatchewan Oldman Peace Pembina Red Deer Slave Smoky South Saskatchewan
Waterfalls	Athabasca Bow Bridal Veil Crescent Crypt Elbow Panther Sunwapta
Lakes	Athabasca Beaverhill Bistcho Claire Cold La Biche Lesser Slave Pigeon Ste. Anne Sylvan Utikuma Wabamun
Reservoirs	Abraham Barrier Brazeau Chestermere Kananaskis McGregor Minnewanka Glenmore Milk River Ridge Sikome Gleniffer
Glaciers	Athabasca Bow Columbia Icefield Crowfoot Hector Peyto Saskatchewan Vulture Wapta Waputik Icefield
Other	Hay-Zama Wetlands Peace–Athabasca Delta Whooping Crane Summer Range (wetlands)