| 21. | Above, where temperatures are below freezing, is the " tierra helada ", a zone of permanent snow and ice.
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| 22. | Only the highest peaks ( such as Ojos del Salado, Monte Pissis, and Llullaillaco ) have some permanent snow coverage.
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| 23. | The winter of the north lasts for about 200 days with permanent snow cover from about mid-October to early May.
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| 24. | Abkhazia's landscape ranges from coastal forests and citrus plantations to permanent snows and glaciers in the north of the region.
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| 25. | This was well above the permanent snow line, but on rocks that were so steep that little snow could rest.
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| 26. | Despite the high elevations, there is no current glacier activity in the Cordillera de L�pez, just some semi-permanent snow fields.
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| 27. | Normally, a permanent snow cover is generally formed in October and does not melt again until the end of May.
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| 28. | It is 4, 374 m ( 14, 350 feet, previously 4, 356 m ) high and has a permanent snow cap.
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| 29. | Aside from the volcanic peaks, the crests include many narrow ridges, some of which reach into the zone of permanent snow.
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| 30. | The upper limit of the alpine band often gives way to bare rock and permanent snow which continues on to the summit.
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