On a small hill surrounded by boggy muskeg in the Tanana River Valley, prehistoric skin scrapers made of schist, polished slate tools and glass beads were uncovered in the last week.
Every summer, Alaska’s glaciers melt and send vast quantities of water gushing through silty gray rivers, past towns and villages and finally into the sea. Some glaciers calve directly into the ocean, instantly losing car-sized chunks of ice and wowing boats full of tourists.
The trick to getting a good ice core is to drill straight down into the sea ice, continually clear the slush gurgling up from the ocean, correctly reassemble the core fragments on the tray, take its temperature every couple of inches before it melts or cools, and saw it into hockey-puck-sized chunks without dropping them […]
On the 5-mile snowmachine ride up to Point Barrow, we saw several fresh polar bear tracks the size of dinner plates, a pile of whalebones from last year, and a 3-foot-wide crack in the sea ice that could swallow a sled. The crack was created when an ice floe in the open water crashed into […]