Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pirin National Park' has mentioned 'Snow' in the following places:
Occurrence Sentence Text Source
[30] In winter the precipitation is mainly snow, varying from 70xe2x80x9390% at the lower altitudes to 100% at higher.
[31] The average number of days with snow cover varies from 20xe2x80x9330 to 120xe2x80x93160.
The highest thickness of the snow cover reaches 40xe2x80x9360xc2xa0cm at 1000xe2x80x931800xc2xa0m in February and 160xe2x80x93180xc2xa0cm above 1800xc2xa0m in March (190xc2xa0cm on Vihren).
[30] In some winters the snow thickness can reach 250xe2x80x93350xc2xa0cm.
[47] The European snow vole is a relict species.
Other threats to the property include illegal logging, poaching and the use of snow mobiles and quad bikes.