Welcome to NBMCA.ca


North Bay-Mattawa Conservation Authority

NBMCA was founded in 1972 by the Province of Ontario and the NBMCA’s 10 member municipalities.
As a community-based, non-profit environmental organization, NBMCA is dedicated to
conserving, restoring, developing and managing renewable natural resources on a watershed basis.
NBMCA is one of 36 Conservation Authorities who are members of Conservation Ontario.

Be a Steward!

Prevent Erosion and Runoff!

Planting trees and shrubs along the shoreline or stream bank at your home, farm or cottage is one of the ways you can help protect and preserve water quality. 


Development and On-site Sewage

Permits are one tool for balancing human needs with the needs
of the natural environment, protecting people and property
from natural hazards.


Integrated Watershed Management

From water quality monitoring and flood forecasting to drinking water source protection, NBMCA uses science to make watershed management decisions. 

Get Outside!

Trails & Events

Looking to hike, bike, or ski?
Paddle a historic canoe route?
Explore our natural heritage?
Take part in an environmental festival or special event?  


NBMCA Delivers Essential Service During Stay-at-Home Order

April 13, 2021

During the Provincial Emergency and Stay-at-Home Order issued by the province on April 8, 2021, the North Bay-Mattawa Conservation Authority will continue to deliver programs that have been deemed an “Essential Business/Service” by the Ontario/Canadian government. 


Conservation Areas Open; New Trail Bridge at Eau Claire Gorge

May 07, 2021

 (North Bay, Ontario, May 7, 2021)  North Bay-Mattawa Conservation Authority’s (NBMCA) 15 conservation areas and trails have officially opened for passive use while a few amenities, such as washrooms, remain closed due to COVID-19.



Service Disruption - Kinsmen Trail between Main and Stanley now open

May 07, 2021

May 7, 2021 - The portion of the Kinsmen Trail which was closed between Main Street East and Stanley Street is now open. 


Service Disruption - Section of Kinsmen Trail closed May 6

May 05, 2021

May 5, 2021 - Kinsmen Trail will be closed all day on May 6, 2021.  Trail will be closed between Main Street East and Stanley Street.


Corbeil Conservation Area Now Opened

April 08, 2021

Corbeil Conservation Area, which was closed in March due to spring runoff, has now reopened.


The 2021 Mattawa River Canoe Race has been cancelled due to COVID-19. Here's hoping we're back in 2022! 

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