Virginiatown Community Park & Boat Launch/Marina

Larder Lake

Ontario, Canada

Easily accessible location beside the boat launch where the picnic table sits . This is close to the eastern most point of Larder Lake where the river flows into the lake from other lakes. This is also where the Kerr Adison mine operated for many decades as one of the largest gold mines in the world at the time of it's peak production. Back then mine tailings were routinely dumped directly into the lake here...fortunately the mine has been closed for a long time.

Location created by
Heather Ross

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Observations summary

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Observation tests summary

Air temperature °C
15.0 Latest
14.5 Average
Water temperature °C
19.7 Latest
14.6 Average
Alkalinity mg/L
20 Latest
43 Average
Hardness mg/L
50 Latest
63 Average
Dissolved oxygen mg/L
6.0 Latest
6.2 Average
Conductivity μS/cm
91 Latest
101 Average
Secchi depth m
0.0 Latest
0.1 Average
Water depth m
0.7 Latest
0.7 Average
pH (0-14)
7.0 Latest
6.9 Average
Phosphates total ppm
3.0 Latest
19.0 Average

Ice On

  • 2021-12-11
  • 2020-12-06

Ice Off

  • 2022-05-07
  • 2021-04-14
  • 2020-05-15
  • 2019-05-18
  • 2018-06-09