Two of Alaska’s vast national parks, Lake Clark and Katmai, have endured a heritage of volcanic explosions. Lake Clark is a wilderness of endless forests, lakes, marshes, glaciers, and recently active volcanoes, while nearby Katmai, born of one of history’s most violent explosions, shows the aftermath of a cataclysmic eruption a century ago and how the rainforests and inhabitants have recovered. Both parks are home to abundant wildlife, while villages of native Americans continue as well, along with their traditions.