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?  



March 27, 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.


Beaches open at Elks Beach and Eva Wardlaw Conservation Areas

May 29, 2020

Beaches at Elks Beach Conservation Area on Trout Lake, off Hwy 17 and Eva Wardlaw Conservation Areas, on Lake Nipissing off Lakeshore Dr. North Bay,  are now open effective May 29, 2020.


NBMCA Beaches Remain Closed due to COVID-19

May 22, 2020

Provincial emergency orders call for beaches to remain closed at this time.  NBMCA's beaches at Elks Beach, Eva Wardlaw and Mattawa Island are closed. 


NBMCA Opens Conservation Areas for Long Weekend

May 15, 2020

(North Bay, Ontario, May 15, 2020)   All but one of NBMCA’s conservation areas will be officially opened Saturday for passive use while a few amenities, such as washrooms, will remain closed.


2020 Mattawa River Canoe Race Cancelled due to COVID-19

May 01, 2020

(North Bay, Ontario, May 1, 2020)   The 2020 Mattawa River Canoe Race set for July 25 has been cancelled for due to the COVID-19 pandemic.


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



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