Welcome to www.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 Service Delivery during COVID-19

August 04, 2020

The North Bay-Mattawa Conservation Authority continues to follow the guidance of the North Bay Parry Sound District Health Unit to monitor the Novel Coronavirus (COVID-19) situation and respond appropriately.  We continue to examine our business practices to find a balance between our social responsibility to prevent the spread of COVID-19 and protecting our employees from potential exposure while continuing to deliver essential services.


NBMCA Board of Directors Meeting - November 25, 2020

November 20, 2020

The next North Bay-Mattawa Conservation Authority Board of Directors meeting will be held on November 25, 2020 at 4:30pm via Zoom.


NBMCA Board & Source Protection Authority Meetings Oct 28 2020

October 25, 2020

The North Bay-Mattawa Source Protection Authority is set to meet October 28, 2020 via Zoom, followed by the NBMCA Board of Directors Meeting. 


New Decking for Kate Pace Way Bridge over La Vase River

October 22, 2020

There’s a new deck on the Kate Pace Way Bridge over the La Vase River and it was officially opened today by the North Bay-Mattawa Conservation Authority and supporters who contributed to the project.


Chippewa Creek Project will Reduce Flood Risk, Enhance City’s Active Transportation Network

October 08, 2020

(North Bay, October 8, 2020)  The North Bay-Mattawa Conservation Authority will begin work this month on remediating 45m of Chippewa Creek at Oak St and reestablishing the Kinsmen Trail link across the creek with a new pedestrian bridge.


2019 Year In Review


Registration NOW OPEN for the 45th Annual Mattawa River Canoe Race - July 24, 2021



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