September 23, 2022
Sand deposits everywhere in Alaska harken back to a time thousands of years ago when big winds blasted fine particles of glacier-ground mountain a long way. It must have been an unpleasant time to be walking around Alaska, but scientists like Mann are fascinated with what it left behind.
September 12, 2022
Jesika Reimer, a bat expert and consultant, has held in her hands little brown bats from the Northwest Territories to the Tanana River. Along with a few colleagues around Alaska, she is sharing new information about the farthest-north bat.
September 8, 2022
In this wild place where dump truck drivers once tipped load after load of gravel onto the moss to make roads and building pads, scientists rolled open an iron gate one recent Saturday afternoon. They invited in conspiracy theorists, reality-TV hosts and salmon fishermen from Chistochina to the grounds of a mysterious antenna field.
August 30, 2022
Adopt-a-mammoth will allow anyone who donates the radio-carbon dating fee of $350 to receive a digital photo of their tusk, femur or whatever mammoth part it happens to be. Scientists will then remove a collagen sample and send it to a carbon-dating lab in California. Mammoth adopters will get results on the age of their animal shortly after the scientists do.
August 15, 2022
The Yukon — a territory of Canada east of the Alaska border — is a great place to find the preserved remains of ancient creatures. One reason is that the immense ice sheet that covered most of North America (including Chicago and New York City) did not press down on central Yukon nor the middle of Alaska. That spared the landscape from the abrasion of millions of pounds of flowing ice.
August 5, 2022
When my little Ford pickup chugged into Alaska 36 years ago this month, I didn’t know a wheel dog from a dog salmon. You could have told me the North Slope was connected to the Panhandle by the Chain and I would have believed you…. I could have avoided that awkwardness if I had possessed the Dictionary of Alaskan English.
July 29, 2022
This North Carolina boulder carved a satisfying track as it slid downhill, and you can see it with lidar imagery
By Philip S. Prince A few weeks ago, after years of “lidar surfing,” I finally encountered an Appalachian boulder that left clear evidence of its sliding path down a mountainside. Large boulders are common throughout all of topographically rugged Appalachia, but they typically reveal little or no evidence about their paths from upslope sources to their current resting places. This Macon County, North Carolina, boulder is a rare exception, as …
In late summer, a few months before this mossy valley will feel the sting of 40-below air, bright red salmon dart through a crystal-clear pool amid fragrant green vegetation. The Gulkana Hatchery has a Garden-of-Eden feel, which is fitting since millions of sockeye salmon begin life here each year.
July 14, 2022
To put the largest eruption in Alaska’s written history in context, Robert Griggs pondered what might have happened if the volcano that erupted in summer of 1912 was located on Manhattan Island rather than the Alaska Peninsula. “In such a catastrophe all of Greater New York would be buried under ten to fifteen feet of ash and subjected to unknown horrors from hot gases….”
July 7, 2022
Dan Mann hands me a clump of orange dirt the size of an almond. He instructs me to put it in my mouth.
“What’s it taste like? Does it crunch? Ash crunches because there’s glass fragments in it.”
“It’s from Mount Edgecumbe,” he says, referring to a volcano 100 miles away, near Sitka. “From an eruption 13,000 years ago.”