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Thessalon River Delta/Rock Lake Red Oak Conservation Reserve

46.4517° N, 83.7513° W

Thessalon River Delta/Rock Lake Red Oak Conservation Reserve, Ontario. 46.4517° N, 83.7513° W

Conservation reserve, 3.25 km². Scale bar on the map.

borealbound.ca/parks/on/thessalon-river-delta-rock-lake-red-oak-conservation-reserve/, compiled October 9, 2026

  • Canadian Protected and Conserved Areas Database, Environment and Climate Change Canada. Contains information licensed under the Open Government Licence – Canada.
  • Provincial Park and Conservation Reserve Regulated, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
  • HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
  • Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
  • Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
  • City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
  • Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).

Thessalon River Delta/Rock Lake Red Oak Conservation Reserve is a 3.25 km² conservation reserve 1 km southwest of Ophir, in Ontario. It was established in 2001.

1 named lake lies in or along the park; the largest is Rock Lake (10.7 km²).

Area
3.25 km²
Established
2001
Named lakes
1

Conditions today

10.6 °C

Mainly ClearWind WNW 26 km/h

Observed at Sault Ste. Marie, as of 6:00 a.m. EDT

Today: A mix of sun and cloud with 30 percent chance of showers early this morning. Becoming sunny this afternoon. Wind becoming west 20 km/h gusting to 40 late this morning. High 13. UV index 3 or moderate.

Weather: Sault Ste. Marie (local forecast), as of 6:03 a.m. EDT

Sun and moon

Civil dawn
7:14 a.m.
Sunrise
7:44 a.m.
Sunset
6:59 p.m.
Civil dusk
7:29 p.m.
Moonrise
6:36 a.m.
Moonset
6:18 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Sault Ste. Marie, as of 4:00 a.m. EDT

In the park

FeatureAreaMax depth
1Rock Lake10.7 km²21.3 m

Beaches

Official names from the Canadian Geographical Names Database; each name opens its location on OpenStreetMap.

Official record

Designation
Conservation reserve
IUCN category
II, National parkInternational IUCN class, not a legal designation
Regulated
2014
Managed by
Ontario Parks