Welcome to the Ganaraska Region Conservation Authority

As of June 24, 2022

Ganaraska Forest remains CLOSED!

Garden Hill Conservation Area remains CLOSED!

Port Hope Conservation Area remains CLOSED!

The Ganaraska Forest Centre is now operating by appointment only

GRCA Administrative Office is now operating by appointment only

Tree Top Trekking Ganaraska is now open

Ganaraska Millennium Conservation Area is now open

Thurne Park Conservation Area is now open

Balls Mill Conservation Area is now open

Sylvan Glen Conservation Area is now open

Richardson's Lookout Conservation Area is now open

Rice Lake Conservation Area is now open

Cobourg Conservation Area is now open

June 24, 2022 - Update on the Ganaraska Forest Closure

GRCA staff continued to clear primary and secondary Forest roads within the West and Central Forest. Downed trees along with dangerous spring poles and cracked trees do slow efforts.

The Ganaraska Forest remains closed. Trees and hangers continue to come down as addition storm systems occur in the area. The GRCA thanks everyone for their patience and understanding.

Please note: Existing memberships will be extended to reflect the closure period.

The GRCA is asking for people to PLEASE stay away from the area.

Updates will be provided as they become available. Your understanding and patience is appreciated!


The Ganaraska Region Conservation Authority's overall goal is the conservation, restoration, development and management of natural resources on a watershed basis while providing for the public enjoyment of the lands it oversees.

The Ganaraska Region Conservation Authority (GRCA) was formed in October 1946 under the Conservation Authorities Act and is one of the oldest conservation authorities in Ontario.

The watersheds of the GRCA covers an area of 361 square miles from Wilmot Creek in Clarington to east of Cobourg from the south shore of Rice Lake down to Lake Ontario. This area includes seven municipalities in whole or in part: Township of Cavan Monaghan, Town of Cobourg, Township of Alnwick/Haldimand, Township of Hamilton, Municipality of Port Hope, City of Kawartha Lakes, Municipality of Clarington.

Registration for Nature Nuts Summer Camp 2022 is now OPEN!!  Registration Information



Latest News


Please be advised that due to harvesting, all trails in the red areas on the attached maps will be closed for recreational use effective immediately. Forest roads in the vicinity will remain open however users should exercise caution when approaching these areas. Please check our social media and website for updates on reopening. Thank you…

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Ganaraska Region Conservation Authority Launches “Community Stories: Sharing our Watershed History”

For Immediate Release, August 11, 2021, Ganaraska Conservation Authority – Did you know that the Ganaraska Conservation Authority is one of the oldest in Ontario, established in 1946? Do you recall when the Ganaraska Forest was being planted in the late 1940s? Did you experience past floods and Hurricane Hazel in 1954? Maybe you have memories from a past school trip? The GRCA wants to hear your stories!  To celebrate…

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The GRCA monitoring network has recorded above average rainfall over the past 30 days, and the watersheds in the Ganaraska Region have recovered to normal conditions as a result. A lack of rainfall in May and early June led to the declaration of a Level 1 Low Water Condition on June 6th, however since the…

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Ganaraska Watershed – After an extremely dry month of May, the watersheds of the Ganaraska Region have entered a Level 1 low water condition.  As a result, the Ganaraska region Conservation Authority is asking residents and business’ to voluntarily reduce their water use. A lack of rainfall over the past three months has caused below…

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