
1) Arctic geography terminology 2) River in The New World 3) River in Chile 4) River in South America 5) River of The Americas 6) River of South America 7) River in The Americas 8) River of Chile
Found on
https://www.crosswordclues.com/clue/pingo

cone-shaped mound with ice core
Found on
http://phrontistery.info/p.html

dome-shaped hill formed in a permafrost area when the hydrostatic pressure of freezing groundwater causes the upheaval of a layer of frozen ground. ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/p/69

A large conical mound that contains an ice core. This feature can be up to 60 to 70 meters in height. Form in regions of permafrost. Common in the Mackenzie Delta region of Canada. Also see the related palsa.
Found on
http://www.physicalgeography.net/physgeoglos/p.html

an Inuvialuktun term for a perennial frost mound consisting of a core of massive ice with soil and vegetation cover; the size can range from a few meters to tens of meters, in both diameter and height; can be found in continuous and discontinuous permafrost zones.
Found on
https://nsidc.org/cryosphere/glossary?page=19
No exact match found.