Alberta @lemmy.ca starrycartridge @lemmy.ca 2d ago Obsidian artifacts unearthed in Alberta offer new clues on prehistoric trade routes www.cbc.ca /news/canada/edmonton/alberta-obsidian-research-1.7495831 2 crossposts Archaeology @mander.xyz starrycartridge @lemmy.ca 1d ago Obsidian artifacts unearthed in Alberta offer new clues on prehistoric trade routes www.cbc.ca /news/canada/edmonton/alberta-obsidian-research-1.7495831 Canada @lemmy.ca starrycartridge @lemmy.ca 2d ago Obsidian artifacts unearthed in Alberta offer new clues on prehistoric trade routes www.cbc.ca /news/canada/edmonton/alberta-obsidian-research-1.7495831