Ontario Nature Reserve: Thompson Island Preview 1 Ontario Nature Reserve: Thompson Island Preview 2 Ontario Nature Reserve: Thompson Island Preview 3

Ontario Nature Reserve: Thompson Island

Xavier Maps

  • Backroading
  • Camping
  • Fishing
  • Hiking
  • Off-roading
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$1.99 USD
Geologists will find Thompson Island interesting for its Paleohelikian gabbro dikes and sills, formed approximately one billion years ago. These dikes and sills were created when pressurized volcanic lava deep within the earth’s crust was thrust through vertical and horizontal crevices in the bed...
Geographic area:
Maps of Canada Maps of Ontario, Canada Maps of Thunder Bay (District), Ontario
Category:
Parks & Forests
Size:
0.64MB
Publication:
January 2022
Language:
English

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