Groundhog River

Groundhog River Rivière Groundhog(in French)
Groundhog River at Highway 11
Location of the mouth of the Groundhog River in Ontario
Location
Country	Canada
Province	Ontario
Region	Northeastern Ontario
Districts	Cochrane Sudbury
Physical characteristics
Source	Horwood Lake
• location	Keith Township, Sudbury District
• coordinates	48°06′00″N82°16′13″W / 48.10000°N 82.27028°W / 48.10000; -82.27028
• elevation	336 m (1,102 ft)
Mouth	Mattagami River
• location	Clay Township, Cochrane District
• coordinates	49°43′04″N81°58′04″W / 49.71778°N 81.96778°W / 49.71778; -81.96778 Coordinates: 49°43′04″N81°58′04″W / 49.71778°N 81.96778°W / 49.71778; -81.96778
• elevation	191 m (627 ft)
Basin features
Progression	Mattagami River→ Moose River→ James Bay
River system	James Bay drainage basin
Tributaries
• left	Wakusimi River, Otapingshewee River, Ivanhoe River
• right	Nat River

The Groundhog River is a river in Cochrane District and Sudbury District in Northeastern Ontario, Canada. ^{[1] [2]} The river is in the James Bay drainage basin and is a left tributary of the Mattagami River.

About 23 fish species have been identified in the Groundhog River, including self-sustaining population of lake sturgeon which are provincially rare to uncommon. ^[3]

The Groundhog River is an advanced-level canoe route with several series of rapids and white water, in particular from the north of Groundhog Lake to the town of Fauquier; however, this river trip can be extended all the way to James Bay via the Mattagami and Moose Rivers. ^[3]

Course

Carmicheal hydroelectric dam

The river begins at Horwood Lake in geographic Keith Township ^[4] in the Unorganized North Part of Sudbury District. ^[2] It flows northeast over the Ontario Power Generation Horwood Lake Dam, ^[5] used to control water flow and store water for hydroelectricity generating stations downstream in the drainage basin, to Groundhog Lake, then north under the Canadian National Railway transcontinental main line at the railway point and unincorporated place of Groundhog River, between the railway point of Joburke to the west and the community of Kukatush to the east. The railway line is used by Via Rail transcontinental Canadian trains, but none of these locations is served by the train.

The river continues north under Ontario Highway 101, passes over the Upper Falls and series of unnamed cataracts and enters Cochrane District at geographic Enid Township. ^[6] It continues north through the Flying Post 73 Indian Reserve, ^{[6] [7] [8]} part of the Flying Post First Nation, over unnamed cataracts, jogs west then again north over the course of the Six Mile Rapids and takes in the left tributary Ivanhoe River and right tributary Nat River. The Groundhog River again jogs west, takes in the left tributary Otapingshewee River, then heads north through the Ten Mile Rapids, passes over the Carmichael Falls Generating Station and dam ^{[5] [9]} and takes in the left tributary Wakusimi River. It heads around Bremner Island, and reaches the community of Fauquier in the incorporated township of Fauquier-Strickland. It is crossed there by Ontario Highway 11 and by the Ontario Northland Railway secondary main line, formerly a Canadian National Railway secondary line and originally the National Transcontinental Railway transcontinental main line.

The river continues north around a series of small islands and the Dixon Rapids, Hamilton Rapids and La Duke Rapids, passes over the Whist Falls, and reaches its mouth at the Mattagami River in geographic Clay Township. ^[10] The Mattagami River flows via the Moose River to James Bay.

Tributaries

• Beardmore Creek (right)
• Gauthier Creek (left)
• Wellington Creek (right)
• Nansen Creek (left)
• Bremner Creek (left)
• Wakusimi River (left)
• South Creek (right)
• Stringer Creek (right)
• Slack Creek (left)
• Hicks Creek (right)
• Otapingshewee River (left)
• Nat River (right)
• Montcalm Creek (right)
• Ivanhoe River (left)
• Scorch Creek (left)
• Vimy Creek (left)

Groundhog River Waterway Provincial Park

Groundhog River Waterway Provincial Park
IUCN category II (national park)
Coordinates	49°03′28″N82°07′21″W / 49.05778°N 82.12250°W / 49.05778; -82.12250 [11]
Length	180 km (110 mi)
Area	11,036 ha (42.61 sq mi) [12]
Designation	Waterway
Established	2006
Governing body	Ontario Parks

The Groundhog River Waterway Provincial Park is a waterway park that protects about 180 kilometres (110 mi) of the river and its banks in 2 non-contiguous sections, from the outlet of Groundhog Lake to MacVicar geographic township, and from 10 kilometres (6.2 mi) downstream of Fauquier to its mouth at the Mattagami River. In the future, additional lands may be added that will reduce or remove the gap between the 2 sections. It was established in 2006 and is meant for remote canoe camping for advanced canoeists, as well as fishing, hunting, and nature watching. ^{[3] [12]}

Because of its length, the park features about 22 different landform vegetation combinations, of which weakly broken ground moraine and lacustrine deposits are the dominant types. Its vegetation is characterized by mixed conifer and mixed deciduous forests. It is a non-operating park, meaning that there are no facilities or services. ^{[3] [12]}

See also

• List of rivers of Ontario

References

1. "Groundhog River". Geographical Names Data Base . Natural Resources Canada . Retrieved 2011-09-20.
2. "Groundhog River". Atlas of Canada . Natural Resources Canada. 2010-02-04. Retrieved 2011-09-20. Shows the course of the river highlighted on a map.
3. "Groundhog River Provincial Park Management Statement". Ontario.ca. Ministry of the Environment, Conservation and Parks. 10 November 2015. Retrieved 15 September 2021.
4. "Keith" (PDF). Geology Ontario - Historic Claim Maps. Ontario Ministry of Northern Development, Mines and Forestry . Retrieved 2011-09-20.
5. OPG hydroelectric generating stations, potential hydroelectric developments and First Nation reserves (PDF) (Map). Ontario Power Generation. August 2008. Retrieved 2011-09-20.
6. "Enid" (PDF). Geology Ontario - Historic Claim Maps. Ontario Ministry of Northern Development, Mines and Forestry . Retrieved 2011-11-06.
7. "Strachan" (PDF). Geology Ontario - Historic Claim Maps. Ontario Ministry of Northern Development, Mines and Forestry . Retrieved 2011-11-06.
8. "Flying Post 73". Geographical Names Data Base . Natural Resources Canada . Retrieved 2011-11-06.
9. "Wawa Hydro Operations" (PDF). Brookfield Renewable Power. Archived from the original (PDF) on 2011-07-08. Retrieved 2011-11-06.
10. "Clay" (PDF). Geology Ontario - Historic Claim Maps. Ontario Ministry of Northern Development, Mines and Forestry . Retrieved 2011-09-20.
11. "Groundhog River Waterway Provincial Park". Geographical Names Data Base . Natural Resources Canada.
12. "Groundhog River Waterway". www.ontarioparks.com. Ontario Parks. Retrieved 15 September 2021.