Welcome to NBMCA.ca

Leaders in Watershed Management!

North Bay-Mattawa Conservation Authority

NBMCA was founded in 1972 by the Province of Ontario and its 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.
NBMCA acknowledges that we are in Robinson-Huron Treaty territory, the Traditional Territory and Treaty Lands
of the Nbisiing Anishinaabeg, as well as the unceded and ancestral Traditional Territory
of the Algonquin People and the Metis Nation.

Celebrating 50 years!

Boardwalk of Champions

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

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

Snow Survey for March 15, 2023

March 16, 2023

(North Bay, Ontario, March 16, 2023) The average snow depth increased by 4.2 cm and the average water equivalence increased by 20.0 mm since March 2, 2023 reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 

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Caution on Parks Creek as Ice Removal begins March 20

March 16, 2023

(North Bay, March 16, 2023)   The annual ice removal on Parks Creek near Lakeshore Drive is set to begin Monday, March 20 and the North Bay-Mattawa Conservation Authority is urging the public and snowmobilers to stay off the creek and away from the mouth of the creek on Lake Nipissing.

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Snow Survey Readings for March 2, 2023

March 03, 2023

(North Bay, Ontario, March 3, 2023) The average snow depth increased by 16.9 cm and the average water equivalence increased by 17.0 mm since February 16, 2023 reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 

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Photographs of the watershed take top honours in NBMCA’s Photo Contest

February 22, 2023

(NORTH BAY – February 22, 2023)   Winners of the North Bay-Mattawa Conservation Authority’s (NBMCA) 50th Anniversary Watershed Wonders Photo Contest were recognized by the NBMCA Board Members at its Feb. 22 meeting.

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Chippewa Creek Erosion Project nears Completion with New Pedestrian Bridge

February 10, 2023

(North Bay, February 10, 2023) The Chippewa Creek Erosion Remediation project is one step closer to completion today with the installation of the 28 metre pre-fabricated pedestrian bridge over the creek at Oak St. through a project led by the North Bay-Mattawa Conservation Authority.

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