If you like big rocks, I got just the place for you! Roughly half an hour north from Peterborough you can visit the town of Buckhorn in the Kawartha region of Ontario which has three easily accessible glacial erratics.
What are glacial erratics?
Glacial erratics are large boulders that have been carried by ice sheets, often smoothing, and scouring them in the process as they are carried underneath the ice sheets along with other eroded materials. They can then be deposited a distance away their source region making them a great example of the erosive power of ice sheets which have defined the landscapes of southern Ontario during past glaciations. Ontario is littered with glacial erratics originating from when ice sheets scoured the Canadian Shield and transported their igneous or metamorphic rocks southward. These boulders can be massive in size, with the largest known erratic in southern Ontario being the Bleasdell Boulder (search site 32) which is 8 meters tall and weights 33000 tons! https://planetearth.utsc.utoronto.ca/news/buckhorn_2021_12_16.html
Check out the virtual field trip about the Bleasdell Boulder here!
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