Of the 140 unstable slopes along the 92-mile park road, Pretty Rocks has the most potential to disrupt traffic.
John Craighead "Craig" George was swept under a logjam last Wednesday on the Chulitna River near Cantwell, Alaska State Troopers said. The dive team responded to the area Friday morning but found that the water was too high to deploy.The rafting party was decending when they encountered an unusual amount of logjams.
The aggressive infestation that took hold in the Matanuska-Susitna Borough north of Anchorage in 2016 has now spread north, covering hillsides in the communities outside the park with rustred dead trees and reaching into park boundaries.
A worker in Kantishna glimpsed the rare phenomenon in which hundreds of Alaska gnat snakeworm larvae formed a crawling column.
The glacier advanced just over 3.5 miles and moved about 65 feet per day earlier this year. Studying the surge involved a massive undertaking.
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