Permafrost is ground that stays frozen year round; the permafrost in interior Alaska also has massive wedges of actual ice locked within the frozen ground. When that ice melts, the ground surface collapses and forms a sinkhole that can fill with water. Thus, a thermokarst lake is born. At first glance, Big Trail looks like any lake. But look closer and there's something disturbing the surface: bubbles.
08-03-22 In response to declining numbers of Fortymile and Nelchina caribou, the Alaska Department of Fish and Game is taking a more conservative approach to both harvests this fall.
There were 4,500 lightning strikes in Alaska Tuesday — the latest in a run of days with thousands of ground strikes. There were also another 13 new, primarily lightning sparked wildfires in the state Tuesday, mostly in the Interior. The lightning storms have coincided with very dry conditions.