Physiographic Region Maps Click on the following links to view a map of the plant inventories in the region. Southern Ontario Bothwell Sand Plains Caradoc Sand Plains and London Annex Haldimand Clay Plain Horseshoe Morains Huron Fringe Iroquois Plain Kakebeka Kenora Bedrock Knob Niagara Escarpment Norfolk Sand Plain Oak Ridges Moraine Peterborough Drumlin Quetico Bedrock Knob Rainy River Simcoe Lowlands Simcoe Uplands South Slope St. Clair Plains Sydney Lake Bedrock Knob