The dwellings are the size of a typical one-room cabin and dug about four feet down into the earth framed by spruce beams and poles with sod and earth walls and a fireplace at the center.
The depression is dotted with little orange flags mark spots where the crew found artifacts. The dig is located within Kobuk Valley National Park, about 20 or so river miles up the Kobuk from Kiana.
From what he can tell, Anderson believes the village was a regional capital with an estimated population of around 200 people. Through radio carbon dating, researchers found the village dates from the late 1700s or early 1800s, just before first official contact with explorers.
Pre-contact, not pre-Columbian. Good article though. Also audio.