Welcome to NBMCA.ca

1972-2022 - 50 years of conservation!

NBMCA Offices Open By Appt Beginning May 9

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.

Celebrating 50 years!

Boardwalk of Champions

Join in the celebration
and help us recognize
our unsung
watershed heroes!


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?  


Wildlife Preservation Canada Bumble Bee Survey!

June 15, 2022

(North Bay, Ontario, June 15, 2022) It was good news for a number of bee species in Laurier Woods Conservation Area when Wildlife Preservation Canada’s (WPC) bee research team’s turned up a number of species on the decline during their recent spring survey to locate rare and declining bumble bees throughout Ontario.


Water Safety Statement Issued 5:45 pm

May 26, 2022

Water levels in area watercourses are generally at above-average levels for this time of year due to the continued rainfall today. With more rain in the forecast, and a chance of several large storms passing through, the North Bay-Mattawa Conservation Authority has issued a Watershed Conditions Statement – Water Safety.


Chitra Gowda Appointed New CAO

May 26, 2022

The North Bay-Mattawa Conservation Authority (NBMCA) Board Members have appointed Chitra Gowda as its new CAO.


Eau Claire Gorge Conservation Area now open!

May 14, 2022

Eau Claire Gorge Conservation Area gates are now open! Hike the 1.9 self guided trail. Visit the replica loggers cabin. Take in the spectacular rapids and waterfalls where the Amable du Fond flows between steep rock walls. Hwy 17 east to Hwy 630. Follow the signs!


NBMCA Kicks off 50th Anniversary Celebrations on Earth Day!

April 22, 2022

Recognition of “watershed heroes”, raising funds for a “Boardwalk of Champions”, awarding student bursaries, and a return of the Mattawa River Canoe Race are some of the initiatives the North Bay-Mattawa Conservation Authority has planned for the celebration of its 50th anniversary this year, announced this morning on Earth Day.


The 2022 Mattawa River Canoe Race is back July 23, 2022! Check out the website for details.
Mattawa River Canoe Race

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