Located on a sound bordering the Chukchi Sea, about 30 miles above the Arctic Circle, approximately 70 percent of Kotzebue residents are Iñupiat Eskimo. Historically, Kotzebue served as a trading and gathering center for communities in the region. The Noatak, Selawik and Kobuk Rivers drain into the Kotzebue Sound forming a center for transportation to points inland. People from interior villages as well as inhabitants of Russia came to trade furs, seal-oil, hides, rifles, ammunition, and seal skins at Kotzebue. People also gathered for competitions like the current World Eskimo Indian Olympics. On September 2, 2015, President Barack Obama gave a speech on climate change in Kotzebue, becoming the first president to visit north of the Arctic Circle.