Elusive 19th century Alaskan fort located using radar tech 25-Jan-2021 10:05 AM EST, by Cornell University Newswise — ITHACA, N.Y. – Researchers from Cornell University and the National Park Service have pinpointed and confirmed the location of the remnants of a wooden fort in Alaska – the Tlingit people’s last physical bulwark against Russian colonization forces in 1804 – by using geophysical imaging techniques and ground-penetrating radar. The fort was the last physical barrier to fall before Russia’s six-decade occupation of Alaska, which ended when the United States purchased Alaska in 1867 for $7 million. The Tlingit built what they called Shiskinoow – the “sapling fort” – on a peninsula in modern-day Sitka, Alaska, where the mouth of Kasda Heen (Indian River) meets Sitka Sound at the Sitka National Historical Park.