Water Level

Water level in CALA lakes (Rabbit, Cassels, Snake Island, Obashkong) is controlled by  Ontario Power Generation’s dam on Rabbit Lake.

Water levels are posted on the OPG website every Thursday.  Click on the dam symbol on Rabbit Lake for the latest info.


The Matabitchuan River Water Management Plan identifies target water levels through the year for Rabbit Lake.  During the winter drawdown, once water level falls to the point where the height of land is exposed between Rabbit and Cassels, water level in Cassels, Snake Island and Obashkong ceases to drop. Rabbit Lake water level continues to drop. Between the Victoria Day and Thanksgiving weekends, OPG uses its best efforts to maintain the level in an identified “summer operating band”

Current Water Level

Nov 1, 2018

Historic Water Levels

2010      2011      2012      2013      2014      2016     2017