Permafrost is located in high-latitude regions of the world, primarily in the Arctic and Antarctic but also found in some high-altitude mountain ranges.

Here's a breakdown of the locations:

* Arctic: This includes large parts of Alaska, Canada, Russia, Greenland, Iceland, and Scandinavia.

* Antarctic: Permafrost is found in Antarctica's coastal regions and ice-free areas.

* High-altitude mountains: Permafrost exists in mountainous regions like the Himalayas, Andes, and Alps, typically above the treeline.

Important note: Permafrost isn't limited to just those regions. It can also occur in areas with specific microclimates, like shaded slopes or areas with limited sunlight exposure.