Located in northeastern Ontario, the MRCA has a watershed area of over 11,000 square kilometers.


Are you planning development work near a watershed, river, stream, wetland, slope, or shoreline?
You may require a permit from the Conservation Authority.


The Mattagami Region Conservation Authority provides a variety of recreational opportunities throughout the City of Timmins through its system of Conservation Areas and Community Trails.

NEWS and Announcements

November 1

Winter trail reminders:
Other than at Gillies Lake and Hersey Lake, all recreation trails are NOT maintained between November 1 and April 30.
Gillies Lake CA washrooms are closed for the winter season.
Rotary Trail is not to be used by pedestrians and cyclists during the winter in order to protect the groomed ski trails.
Lions Walk Trail is part of the OFSC Snowmobile trails and is not to be used by pedestrians or cyclists during the winter months.

October 12

Bart Thomson Trail: Contractors are working to straighten the lights between Northern College and White Waterfront CA. Please use caution in the area, watch for workers and be mindful of any posted signage.

May 25

The MRCA staff will be working on the Hersey Lake outer loop trails and the Golden Springs Trail over the next few weeks to clear the remaining debris from the ice storm of November 2022. We ask for patience as we get through the 7 km of damaged area with our minimal staff. Please use caution and watch for workers when in those areas.

Flood Status

Mattagami River
Normal Water Levels
Porcupine Lake
Normal Water Levels
Kamiskotia Lake
Normal Water Levels

Low Water Status

Normal Water Levels

Contact Us

The Mattagami Region Conservation Authority office is located at:

100 Lakeshore Road
Timmins, Ontario
P4N 8R5

Tel:  705-360-2660
Fax: 705-360-2692
Email: [email protected]

Our office is open Monday to Friday from 8:00 a.m. to 4:00 p.m., closed between noon and 1:00 p.m.