In 1804, indigenous Tlingit people living near the Alaskan town of Sitka went to war with the Russians. Russian fur traders, actually, and their battle would have far reaching consequences, not just for the Tlingit, but also for the future of Alaska, by setting the stage for it to become part of the United States. The battleground where this took place is now part of the Sitka National Historic Park, but the precise location of the Tlingit fort had been debated, until now. Thomas Urban of Cornell University spotted it…