Discover the science behind Alaska's dramatic landscapes with Alaska Park Science. Published twice a year by Alaska Geographic for the National Park Service, this award-winning full-color journal chronicles the latest scientific research in Alaska's national parks. In this issue, you'll find reports on the Triassic history of the Wrangell Mountains, the paleogeography of Woodchooper Volcanics in Yukon-Charley Rivers National Preserve, the biting flies of Beringia, volcanoes and permafrost in Bering Land Bridge National Monument, and the Western Airborne Contaminants Assessment Project.