Last Mountain Creek

{{Short description|River in Saskatchewan, Canada}}

{{Use Canadian English|date=April 2024}}

{{Use dmy dates|date=April 2024}}

{{Infobox river

| name = Last Mountain Creek

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| image = Aerial - Craven, Saskatchewan 01 - white balanced (10618015544).jpg

| image_caption = Confluence of Last Mountain Creek, Qu'Appelle River, and Wascana Creek

| image_size = 250px

| map = Quappellerivermap.png

| map_size = 250px

| map_caption = The Red River drainage basin, with the Qu'Appelle River highlighted

| pushpin_map = Saskatchewan#Canada

| pushpin_map_size = 250px

| pushpin_map_caption = Location in Saskatchewan

| subdivision_type1 = Country

| subdivision_name1 = {{flag|Canada}}

| subdivision_type2 = Province

| subdivision_name2 = {{flag|Saskatchewan}}

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| length = {{cvt|6|km}}

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| source1 = Last Mountain Lake

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| source1_coordinates = {{coord|50.7432|-104.8677|display=inline}}

| source1_elevation = {{cvt|490|m}}

| mouth = Qu'Appelle River

| mouth_location = Craven

| mouth_coordinates = {{Coord|50|42|24|N|104|49|32|W|display=title,inline}}

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| river_system = Red River

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| extra = {{Cite web|url=http://www4.rncan.gc.ca/search-place-names/unique/HAFKL|title=Place names - Last Mountain Creek|first=Natural Resources Canada|last=Government of Canada|website=www4.rncan.gc.ca}}{{Cite web|url=http://esask.uregina.ca/entry/quappelle_river.html|title=Qu'Appelle River|author=The Encyclopedia of Saskatchewan|access-date=2008-08-02|archive-url=https://web.archive.org/web/20120503112830/http://esask.uregina.ca/entry/quappelle_river.html|archive-date=2012-05-03|url-status=dead}}{{cite web |title= Canada Drainage Basins |year= 1985 |work= The National Atlas of Canada, 5th edition |publisher= Natural Resources Canada |url= http://atlas.nrcan.gc.ca/site/english/maps/archives/5thedition/environment/water/mcr4055 |access-date= 24 November 2010}}

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Last Mountain Creek is a river in south-central Saskatchewan. It is a tributary of the Qu'Appelle River in a region called the Prairie Pothole Region of North America, which extends throughout three Canadian provinces and five U.S. states. It is also within Palliser's Triangle and the Great Plains ecoregion.{{Cite web|url=https://www.thecanadianencyclopedia.ca/en/article/drought-in-pallisers-triangle-feature|title=Drought in Palliser's Triangle | The Canadian Encyclopedia|website=www.thecanadianencyclopedia.ca}}

The river is part of the Upper Qu'Appelle River watershed and starts at the southern end of Last Mountain Lake. It travels in a southerly direction for about {{convert|6|km}} until it meets the Qu'Appelle River in the Qu'Appelle Valley, which was formed during the last ice age. During years in which the Qu'Appelle River is high, Last Mountain Creek naturally reverses direction and flows into Last Mountain Lake.{{Cite web|url=https://globalnews.ca/news/7832958/wsa-working-to-raise-low-water-levels-in-last-mountain-lake-ahead-of-summer/|title=WSA working to raise low water levels in Last Mountain Lake ahead of summer | Globalnews.ca|website=Global News}} Craven Dam is located east of Last Mountain Creek's mouth on the Qu'Appelle River on the eastern side of the village of Craven. The gates of the dam are used to regulate water flows along the Qu'Appelle and can be closed to backflood water up Last Mountain Creek and into Last Mountain Lake.{{cite web |last1=Foster |first1=Scott |title=Water diverted to Last Mountain |url=http://www.reginacity.com/webpages/longlakesewer/meeting.htm |website=Reginacity |publisher=Regina Leader Post |access-date=11 December 2021}}

Description

At the southernmost point of Last Mountain Lake,{{Cite web|url=http://www4.rncan.gc.ca/search-place-names/unique/HAQYQ|title=Place names - Last Mountain Lake|first=Natural Resources Canada|last=Government of Canada|website=www4.rncan.gc.ca}} there is the Valeport Dam ({{Coord|50.7292|-104.8601|display=inline}}) and associated dykes that help control the lake's water levels. The dam was built in 1939, upgraded in 1958, and is {{convert|3.7|m}} high. It is owned and operated by the Saskatchewan Water Security Agency.{{cite web |title=Dams and Reservoirs |url=https://www.wsask.ca/lakes-rivers/dams-reservoirs/ |website=wsask |date=27 January 2021 |publisher=Water Security Agency |access-date=1 April 2024}} Last Mountain Creek flows out of the lake at the dam and runs through Valeport Marsh following Highway 20 until it meets the Qu'Appelle River at the village of Craven and Highways 641 and 729. Wascana Creek meets the Qu'Appelle River just west and upstream from the mouth of Last Mountain Creek.

= Tributaries =

Other than Last Mountain Lake and Valeport Marsh, no named tributaries flow into Last Mountain Creek. Several tributaries flow into Last Mountain Lake, though, including Arm River, Lewis Creek, and Lanigan Creek.

Valeport Marsh

Valeport Marsh ({{Coord|50.7231|-104.8491|display=inline}}) is an extensive floodplain on the south-east corner of Last Mountain Lake at the point where Last Mountain Creek starts. The wetland is over {{convert|30|km2}} in size and follows the course of the river towards Craven and the Qu'Appelle River for about {{convert|6|km}}. A 900-acre conservation project called Valeport Wildlife Management Area Trails protects the wetlands for migratory birds, ducks, grebes, and other wildlife. It was created by the provincial government with the assistance of Ducks Unlimited Canada and is an Important Bird Area of Canada called Valeport Marsh (SK 061).{{Cite web|url=https://www.ibacanada.ca/mobile/site.jsp?siteID=SK061|title=Valeport Marsh (SK061)|website=www.ibacanada.ca}} At the head of the river and edge of the marsh, along Last Mountain Lake's south-eastern shore, is the {{convert|57|ha|adj=on}} Valeport Provincial Recreation Site ({{Coord|50.7478|-104.8709|display=inline}}).{{cite web |title=Valeport Recreation Site |url=https://toponymes.rncan.gc.ca/search-place-names/unique/HAWGT|website=Canadian Geographical Names Database |publisher=Government of Canada |access-date=1 April 2024}} The park offers canoeing, picnicking, hiking, and walking along the top of the dyke.{{Cite web|url=https://www.tourismsaskatchewan.com/listings/1360/valeport-wildlife-management-area-trails|title=Valeport Wildlife Management Area Trails | Tourism Saskatchewan|website=www.tourismsaskatchewan.com}}{{cite web |title=Valeport Recreation Site |url=https://www.protectedplanet.net/555557905 |publisher=Protected Planet |access-date=1 April 2024}}

Along the west side of the Valeport Wildlife Management Area is a Nature Conservancy of Canada property called Big Valley ({{Coord|50|44|20|N|104|53|19|W|display=inline}}). Big Valley is 552 acres of protected grassland and is managed for bird and wildlife habitat.{{Cite web|url=https://www.natureconservancy.ca/en/where-we-work/saskatchewan/featured-projects/../../big-valley.html|title=Big Valley|website=www.natureconservancy.ca}} Valeport Marsh Wildlife Management Area is at the southern tip of Last Mountain Lake and Last Mountain Lake National Wildlife Area is at the northern end.{{cite web |title=Last Mountain Lake National Wildlife Area |url=https://toponymes.rncan.gc.ca/search-place-names/unique/HAXEQ|website=Canadian Geographical Names Database |publisher=Government of Canada |access-date=7 January 2023}}

See also

References

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