Upper Mattagami River Watershed Statistics

Watershed statistics reports include data retrieved from snow course readings and dam operations. The MRCA, Ontario Power Generation and the Ministry of Natural Resources and Forestry collect this information every 2 weeks from the onset of snow until the end of the spring melt. Reports are posted from March 1 onward each year. Please see below for the current year’s reports. Past data can be requested from the MRCA.