Black Ice Rock – North Grenville Historical Society
North Grenville Historical Society 148 Prescott St, Kemptville, Ontario, CanadaNorth Grenville Historical Society Presents: Black Ice Rock: Obsidian and Human Movement into the Ice-Free Corridor Date: March 12th, 2025 During the last Ice Age, a single sheet of ice stretched from the Rocky Mountains to North Grenville and beyond, while another lay draped over the mountains to the Pacific coast. As the ice began […]
$40.00