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Altberg Wetland Nature Reserve

The 39-hectare reserve is nestled in a gently rolling plain.

Beaver lodge, Altberg Wetland Nature Reserve


From the southwest end of South Bay on Balsam Lake, a large wetland complex spreads up the valleys of two creeks. This mosaic of swamp forest and marsh forms a Provincially Significant Wetland, a part of which is protected within the Altberg Wetland Nature Reserve. Rudolf Altberg donated the property to Ontario Nature as a wildlife sanctuary.

The 39-hectare reserve is nestled in a gently rolling plain, just south and west of the Kawartha Lakes and the Trent Canal system. Large areas of swamp forest and open marsh are found on the reserve.

In 2007, the Kawartha Field Naturalists became the official stewards of the reserve.

Wood frog © Deirdre Dimitroff


Visitor access to the property is through an opening in the fence next to the sign.

No boardwalks or formal trails have been developed on the reserve.

Large silver maple © Deirdre Dimitroff


From Fenelon Falls take Highway 35 west to Victoria County Road 8 (aka Glenarm Road). Continue west on the county road to the hamlet of Glenarm. At Glenarm, turn north on Victoria County Road 35. The reserve is on the east side of the road, about three kilometres north of Palestine Road. Look for the green and white Ontario Nature sign on the fence, marking the entrance to the property.

View Altberg Wetland Nature Reserve in a larger map.

Maple swamp © Deirdre Dimitroff

Altberg Wetland Nature Reserve © Deirdre Dimitroff

Ontario Nature Reserves have reopened. Please maintain physical distancing and be safe.

Since our Nature Reserves were closed as a public health measure to prevent transmission of COVID-19, we have been assessing the trails and will be resuming maintenance when we are permitted to do so. Use of our trails is at your own risk.

We want you to be safe. Please follow current advice of health and government officials. Please practice good hand hygiene, keep your distance from others and avoid touching surfaces such as signs, gates and railings.

If you have any questions, please call 1-800-440-2366 or email info@ontarionature.org.

Thank you for your understanding at this difficult time.