| Red Deer River | |
|---|---|
 Red Deer River inDrumheller,Alberta | |
 | |
| Location | |
| Country | Canada |
| Physical characteristics | |
| Source | |
| • location | Sawback Range, Red Deer Lakes |
| • coordinates | 51°31′55.96″N116°02′31.24″W / 51.5322111°N 116.0420111°W /51.5322111; -116.0420111 (Red Deer River origin) |
| • elevation | 2,200 m (7,200 ft) |
| Mouth | |
• location | South Saskatchewan River nearEmpress |
• coordinates | 50°55′23.34″N109°53′41.75″W / 50.9231500°N 109.8949306°W /50.9231500; -109.8949306 (Red Deer River mouth) |
• elevation | 579 m (1,900 ft) |
| Length | 724 km (450 mi) |
| Basin size | 45,100 km2 (17,400 sq mi) |
| Discharge | |
| • average | 70 m3/s (2,500 cu ft/s)[1] |
TheRed Deer River is a river inAlberta and a small portion ofSaskatchewan, Canada. It is a majortributary of theSouth Saskatchewan River and is part of the larger Saskatchewan /Nelson system that empties intoHudson Bay.[2]
The river has a total length of 724 km (450 mi) and a drainage area of 45,100 km2 (17,400 sq mi). Its mean discharge is 70 m3/s (2,500 cu ft/s).[1]
The river is named for the translation of a native term for the river,wâwâskêsiw sîpiy, which means "elk river" in theCree language.[3] "Red deer" was an alternative name forelk, referring to a closely relatedEurasian species.
Communities located along the Red Deer River includeSundre,Red Deer,Drumheller, andEmpress, The city ofBrooks, as well asDinosaur Provincial Park, are also located in the Red Deer River Basin. A glacial flood about 18,000 years ago eroded out a portion of this basin and apparently all or most of the scenic badlands bearing the dinosaur and other Cretaceous fossils.
Joseph Tyrrell discovered a huge coal seam here in 1883, besides large dinosaur skeletons.[4]
In June 2013, Alberta, Canada, experienced heavy rainfall that triggeredcatastrophic flooding throughout much of the southern half of the province along theBow,Elbow,Highwood,Oldman, and Red Deer rivers and tributaries. Twenty-four municipalities declared local states of emergency as water levels rose and numerous communities were placed under evacuation orders.[5] TheRoyal Canadian Mounted Police stated four people may have drowned nearHigh River.[6] Over 100,000 people in the region were displaced.[7]
The river originates on the eastern slopes of theCanadian Rockies, in theSawback Range near theSkoki Valley insideBanff National Park, and then flows east through the mountains and foothills region. It turns north-east beforeSundre and flows to an artificialreservoir namedGleniffer Lake, created in 1983 by theDickson Dam and keeps this heading to the city ofRed Deer, where it turns east, and then south beforeStettler. It flows south with its valley protected by provincial and regional parks such asTolman Badlands Heritage Rangeland,Dry Island Buffalo Jump Provincial Park, Dry Island Corridor andMidland Provincial Park. AtDrumheller it has a south-east direction, and while it flows throughDinosaur Provincial Park it turns east and flows to the Alberta/Saskatchewan border, which it crosses atEmpress. It flows for 16 km (9.9 mi) throughSaskatchewan before it merges into theSouth Saskatchewan River.
| 
|
The waters of Ewing Lake, Little Fish Lake also flow into the Red Deer River.[9][10]
Sport fish include:walleye,northern pike,sauger,lake whitefish,yellow perch,burbot,lake sturgeon,mountain whitefish,goldeye,brown trout,bull trout,rainbow trout,brook trout, andcutthroat trout.
Other fish include:emerald shiner,river shiner,spottail shiner,flathead chub,longnose dace,quillback (quillback carpsucker),longnose sucker,white sucker,shorthead redhorse,silver redhorse,perch,spoonhead sculpin,lake chub,northern pearl dace,northern redbelly dace,finescale dace,fathead minnow andbrook stickleback.
![Red Deer River north of emerald shiner Jenner, Alberta[11][12]](/mt/?noimg=&dark=on&url=https%3a%2f%2fen.wikipedia.org%2fwiki%2fFile%3aRDRiver.JPG)
The Red Deer River is the water source for the City ofRed Deer and the surrounding area. Pipelines cross under the river and there have been leaks disrupting access to potable water.[13] Increased water flow of the Red Deer River system during heavy rainfall in June 2008 eroded supporting soil, freely exposing a section ofPembina Pipeline Corporation's Cremona crude oil pipeline to the Red Deer River currents. About 75 to 125 barrels (11,900 to 19,900 L; 2,600 to 4,400 imp gal; 3,200 to 5,200 US gal) of crude oil flowed upstream from the break point under a Red Deer River channel, leaving an oily sheen on Gleniffer Reservoir and 6,800 kg (15,000 lb) of oil-soaked debris.[14][15] The remediation was not completed until 2011.[16]
Heavy rains in early June 2012 caused a similar but larger leak on aPlains Midstream Canada 46-year-old pipeline on a Red Deer River tributary,Jackson Creek, Alberta (51°52′19″N114°36′23″W / 51.87194°N 114.60639°W /51.87194; -114.60639 (Jackson Creek)[17]) nearGleniffer Lake andDickson Dam,[18] which spilled approximately 1,000 and 3,000 barrels (160,000 and 480,000 L; 35,000 and 105,000 imp gal; 42,000 and 126,000 US gal) of lightsour crude oil into the Red Deer River.[16][19]
Red Deer has ahumid continental climate (KöppenDfb), with something of asemi-arid influence due to the city's location withinPalliser's Triangle. The highest temperature ever recorded in Red Deer was 37.2 °C (99.0 °F) on 8 July 1906,[20] 2 July 1924,[21] and 28 & 29 June 1937.[22] The lowest recorded temperature was −50.6 °C (−59.1 °F) on 17 December 1924.[23] The city lies in the 4a planthardiness zone.[24] Summers are typically warm and rainy with cool nights. Winters are typically long, cold, and very dry.
| Climate data for Red Deer (Red Deer Regional Airport) WMO ID: 71878; coordinates52°10′43″N113°53′35″W / 52.17861°N 113.89306°W /52.17861; -113.89306 (Empress); elevation: 904.6 m (2,968 ft); 1991-2020 normals, extremes 1904−present | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record highhumidex | 10.5 | 17.3 | 24.8 | 28.2 | 37.0 | 35.0 | 40.4 | 37.1 | 34.2 | 27.8 | 22.5 | 14.8 | 40.4 |
| Record high °C (°F) | 10.9 (51.6) | 18.1 (64.6) | 24.8 (76.6) | 32.8 (91.0) | 34.5 (94.1) | 37.2 (99.0) | 37.2 (99.0) | 36.3 (97.3) | 35.0 (95.0) | 28.9 (84.0) | 22.8 (73.0) | 17.2 (63.0) | 37.2 (99.0) |
| Mean daily maximum °C (°F) | −5.6 (21.9) | −3.5 (25.7) | 1.3 (34.3) | 10.1 (50.2) | 16.8 (62.2) | 20.0 (68.0) | 22.9 (73.2) | 22.4 (72.3) | 17.8 (64.0) | 10.4 (50.7) | 1.1 (34.0) | −4.4 (24.1) | 9.1 (48.4) |
| Daily mean °C (°F) | −11.6 (11.1) | −9.8 (14.4) | −4.6 (23.7) | 3.6 (38.5) | 9.7 (49.5) | 13.7 (56.7) | 16.2 (61.2) | 15.2 (59.4) | 10.4 (50.7) | 3.5 (38.3) | −4.7 (23.5) | −10.3 (13.5) | 2.6 (36.7) |
| Mean daily minimum °C (°F) | −17.6 (0.3) | −16.1 (3.0) | −10.5 (13.1) | −3.0 (26.6) | 2.7 (36.9) | 7.4 (45.3) | 9.4 (48.9) | 7.9 (46.2) | 3.0 (37.4) | −3.4 (25.9) | −10.5 (13.1) | −16.2 (2.8) | −3.9 (25.0) |
| Record low °C (°F) | −46.1 (−51.0) | −43.9 (−47.0) | −42.8 (−45.0) | −32.8 (−27.0) | −15.6 (3.9) | −5.0 (23.0) | 0.2 (32.4) | −5.1 (22.8) | −11.7 (10.9) | −28.8 (−19.8) | −38.4 (−37.1) | −50.6 (−59.1) | −50.6 (−59.1) |
| Record lowwind chill | −60.1 | −54.4 | −49.8 | −39.3 | −20.9 | −7.3 | 0.0 | −5.3 | −13.5 | −37.9 | −48.6 | −57.4 | −60.1 |
| Averageprecipitation mm (inches) | 16.3 (0.64) | 11.9 (0.47) | 19.3 (0.76) | 28.1 (1.11) | 58.4 (2.30) | 97.7 (3.85) | 90.0 (3.54) | 70.1 (2.76) | 38.3 (1.51) | 21.6 (0.85) | 16.8 (0.66) | 14.1 (0.56) | 482.6 (19.00) |
| Average rainfall mm (inches) | 0.4 (0.02) | 0.2 (0.01) | 0.6 (0.02) | 12.7 (0.50) | 49.2 (1.94) | 97.2 (3.83) | 90.0 (3.54) | 70.4 (2.77) | 36.7 (1.44) | 12.3 (0.48) | 1.2 (0.05) | 0.7 (0.03) | 371.5 (14.63) |
| Average snowfall cm (inches) | 20.2 (8.0) | 15.1 (5.9) | 23.3 (9.2) | 18.1 (7.1) | 9.5 (3.7) | 0.0 (0.0) | 0.0 (0.0) | 0.4 (0.2) | 2.4 (0.9) | 10.2 (4.0) | 20.0 (7.9) | 18.8 (7.4) | 137.8 (54.3) |
| Average precipitation days(≥ 0.2 mm) | 10.0 | 7.2 | 8.9 | 9.1 | 11.7 | 15.1 | 13.6 | 11.5 | 9.5 | 8.4 | 7.7 | 7.9 | 120.6 |
| Average rainy days(≥ 0.2 mm) | 0.5 | 0.2 | 0.9 | 5.1 | 10.8 | 14.8 | 13.6 | 11.5 | 9.3 | 5.6 | 1.1 | 0.4 | 73.9 |
| Average snowy days(≥ 0.2 cm) | 10.0 | 7.1 | 8.5 | 5.6 | 2.3 | 0.1 | 0.0 | 0.1 | 0.6 | 4.2 | 7.3 | 8.6 | 54.4 |
| Averagerelative humidity (%)(at 1500LST) | 65.7 | 62.5 | 58.4 | 45.4 | 41.7 | 50.6 | 52.2 | 49.0 | 47.3 | 50.0 | 64.0 | 66.5 | 54.4 |
| Source:Environment and Climate Change Canada[25] (June maximum)[22] (July maximum, 1906 and 1924)[20][21] (December minimum)[23][26] | |||||||||||||
Empress is located in thesteppe region known as Palliser's Triangle and experiences a semi-arid climate (Köppen climate classificationBSk). Winters are long, cold and dry, while summers are short, but with average daytime highs that are warm to hot, though nighttime lows are cool. Spring and autumn are quite short, essentially transition periods between winter and summer. Wide diurnal temperature ranges are regular, due to the aridity and moderately high elevation. Low humidity is prevalent throughout the year. Annual precipitation is very low, with an average of 311.6 mm (12.27 in), and is heavily concentrated in the warmer months. On average, the coldest month is January, with a mean temperature of −12 °C (10 °F), while the warmest is July, with a mean temperature of 19.8 °C (67.6 °F). The driest month is February, with an average of 8.6 mm (0.34 in) of precipitation, while the wettest is June, with an average of 68.9 mm (2.71 in).[27]
| Climate data for Empress Climate ID: 3022400; coordinates50°57′21″N110°00′22″W / 50.95583°N 110.00611°W /50.95583; -110.00611 (Empress); elevation: 612.0 m (2,007.9 ft); 1981-2010 normals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 12.0 (53.6) | 17.0 (62.6) | 28.0 (82.4) | 32.0 (89.6) | 36.0 (96.8) | 41.1 (106.0) | 42.2 (108.0) | 41.7 (107.1) | 38.3 (100.9) | 31.7 (89.1) | 23.0 (73.4) | 15.0 (59.0) | 42.2 (108.0) |
| Mean daily maximum °C (°F) | −6.5 (20.3) | −2.6 (27.3) | 4.8 (40.6) | 13.9 (57.0) | 19.7 (67.5) | 23.8 (74.8) | 27.4 (81.3) | 27.0 (80.6) | 20.4 (68.7) | 12.9 (55.2) | 1.7 (35.1) | −4.7 (23.5) | 11.5 (52.7) |
| Daily mean °C (°F) | −12.0 (10.4) | −8.3 (17.1) | −1.2 (29.8) | 6.6 (43.9) | 12.5 (54.5) | 16.9 (62.4) | 19.8 (67.6) | 19.1 (66.4) | 12.8 (55.0) | 5.8 (42.4) | −3.8 (25.2) | −10.1 (13.8) | 4.8 (40.6) |
| Mean daily minimum °C (°F) | −17.5 (0.5) | −14.1 (6.6) | −7.2 (19.0) | −0.7 (30.7) | 5.2 (41.4) | 9.9 (49.8) | 12.1 (53.8) | 11.1 (52.0) | 5.2 (41.4) | −1.2 (29.8) | −9.3 (15.3) | −15.4 (4.3) | −1.8 (28.8) |
| Record low °C (°F) | −47.8 (−54.0) | −45.6 (−50.1) | −40.0 (−40.0) | −28.9 (−20.0) | −14.4 (6.1) | −4.4 (24.1) | 0.0 (32.0) | 0.0 (32.0) | −10.0 (14.0) | −26.0 (−14.8) | −36.5 (−33.7) | −45.0 (−49.0) | −47.8 (−54.0) |
| Averageprecipitation mm (inches) | 14.2 (0.56) | 8.6 (0.34) | 12.7 (0.50) | 18.7 (0.74) | 38.8 (1.53) | 68.9 (2.71) | 50.3 (1.98) | 33.9 (1.33) | 28.5 (1.12) | 11.5 (0.45) | 10.8 (0.43) | 14.8 (0.58) | 311.6 (12.27) |
| Average rainfall mm (inches) | 0.2 (0.01) | 0.3 (0.01) | 2.1 (0.08) | 13.8 (0.54) | 38.2 (1.50) | 68.9 (2.71) | 50.3 (1.98) | 33.9 (1.33) | 28.1 (1.11) | 7.5 (0.30) | 1.0 (0.04) | 0.4 (0.02) | 244.5 (9.63) |
| Average snowfall cm (inches) | 13.9 (5.5) | 8.3 (3.3) | 10.6 (4.2) | 4.9 (1.9) | 0.7 (0.3) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.5 (0.2) | 4.1 (1.6) | 9.8 (3.9) | 14.8 (5.8) | 67.1 (26.4) |
| Average precipitation days(≥ 0.2 mm) | 4.3 | 2.6 | 3.6 | 3.5 | 6.5 | 10.0 | 6.9 | 5.8 | 5.4 | 3.3 | 3.0 | 4.3 | 59.1 |
| Average rainy days(≥ 0.2 mm) | 0.12 | 0.12 | 0.5 | 2.7 | 6.4 | 10.0 | 6.9 | 5.8 | 5.4 | 2.4 | 0.32 | 0.24 | 40.8 |
| Average snowy days(≥ 0.2 cm) | 4.2 | 2.5 | 3.1 | 1.0 | 0.2 | 0.0 | 0.0 | 0.0 | 0.04 | 1.1 | 2.6 | 4.0 | 18.8 |
| Source:Environment and Climate Change Canada[27] | |||||||||||||
| Rivers | | |
|---|---|---|
| Waterfalls | ||
| Lakes | ||
| Reservoirs | ||
| Glaciers | ||
| Other | ||
