North Bay-Mattawa Conservation Authority
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.
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 Readings for March 23, 2023
(North Bay, Ontario, March 24, 2023) Snow depth is normal for this time of year, but much higher than this time last year (27.7 cm in 2022) according to the North Bay-Mattawa Conservation Authority which measures the snowpack as part of its flood forecasting program.
MoreRegion Scores Well with 2023 Watershed Report Card
(March 22, 2023 – North Bay) A Watershed Report Card for the region’s subwatersheds, released today by the North Bay-Mattawa Conservation Authority, tells us that the overall watershed health is good, with room for improvement in a few subwatersheds.
MoreSnow Survey for March 15, 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.
MoreCaution on Parks Creek as Ice Removal begins March 20
(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.
MoreSnow Survey Readings for March 2, 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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