General

Tour of the CRREL Permafrost Tunnel located in Fox, Alaska

Go underground and interactively experience the Cold Regions Research and Engineering Laboratory (CRREL) Permafrost Tunnel near Fox, Alaska, first excavated in the 1960s. This Permafrost Tunnel Tour is accessible inside your browser or in a VR headset. Inside the tunnel, you can see what permafrost features like ice wedge polygons look like below ground and discover bones and other features embedded in permafrost that are up to 40,000 years old. Then fly above the tunnel to see what the view from above looks like, and learn about permafrost research projects in the boreal forest.