This is the largest permafrost (ground that remains below 32 degrees F for two or more years, like 85% of Alaska, Greenland, Canada and Siberia. It is formed from ice holding various types of soil, sand and rock combinations) crater in the world.
This is the largest permafrost (ground that remains below 32 degrees F for two or more years, like 85% of Alaska, Greenland, Canada and Siberia. It is formed from ice holding various types of soil, sand and rock combinations) crater in the world.