Man riding a snowmachine up the Anaktuvuk River Valley at sunset, Gates of the Arctic National Park, Brooks Range, Arctic Alaska PacificStock
A bull caribou approaching the Park Road near Highway Pass in Denali National Park, Interior Alaska PacificStock
Polar bear (ursus maritimus) laying alongside a thawing pond waiting for Hudson Bay to freeze over; Churchill, Manitoba, Canada PacificStock
Scenic view of the Titlis Rotair revolving circular tram at Engelberg Resort in Switzerland PacificStock