A bull caribou approaching the Park Road near Highway Pass in Denali National Park, Interior Alaska PacificStock
A row of trees in a snow covered field with a bank of cloud and blue sky in the background; Calgary, Alberta, Canada PacificStock
Mountain tent on ridge in winter, Mt. McKinley in background, part of Mt. Dan Beard immediately behind tent, Denali National Park and Preserve; Alaska, United States of America PacificStock
A Skier Pauses On The Trail To Look Out Over The Mountains; Whistler, British Columbia, Canada PacificStock
Noah Burmeister runs up hill after leaving Puntilla Lake and the Rainy Pass Checkpoint during Iditarod 2016, Alaska. PacificStock