Welcome to NBMCA.ca

COVID-19 SERVICE DISRUPTIONS

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. 

Permits

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.

Science

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?  

News

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. 

More

Snow Survey Readings for January 13, 2022

January 14, 2022

(North Bay, Ontario, January 14, 2022) Snow depth has increased by 14.6 cm and water content has increased by 18 mm since the last readings on January 4, reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 

More

Snow Survey Readings for December 15, 2021

December 16, 2021

Due to a few mild days, rain and below zero temperatures there is a slight decrease in snow depth and an increase in water content since the last readings December 1, reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 

More

Removal of trees, limbs, plants for holiday decorations not permitted

December 08, 2021

(North Bay, December 8, 2021) The North Bay-Mattawa Conservation Authority (NBMCA) is reminding people this holiday season that it is illegal to remove trees, limbs, berries and other vegetation from Conservation Areas.

More

Snow Survey Readings for December 1, 2021

December 03, 2021

SNOW SURVEY READINGS Begin for 2021-2022 Season
(North Bay, Ontario, December 3, 2021) Snowfall in the area has allowed for the start of the snow survey season this week, reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 

More

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

Want to see NBMCA videos?  Subscribe to our YouTube Channel!