For today's Geo Quiz ... here's your first clue listen:

It's not the sound of someone trying to clear their icy windshield...or power wash their patio. You're hearing the most reliable mode of travel in the place we're looking for.

We're searching for an island in the northern reaches of the Canadian Arctic. The mostly frozen island is part of the territory of Nunavut. It's sunny outside today. But it's down around minus 18 degrees.

Vikings once ventured here to hunt ... later in the 18th and 19th centuries, polar expeditions came this way.

Scientists are monitoring the island's glacial ice shelves to track climate change. By the way, that screeching sound is made by the sled runners of a dog sled.

We'll check in with one of the musher's for the answer in a few minutes...