Examples of use of ground-ice
1. A flood of images sent back by Phoenix revealed a landscape similar to what can be found in Earth‘s permafrost regions _ geometric patterns in the soil likely related to the freezing and thawing of ground ice.
2. The Paektusan Area Sports Village serves as a modern and comprehensive winter sports center which has an ice–skating rink, skiing ground, ice–hockey rink and other sports grounds and lodging and cultural and welfare establishments for players.