aire naturelle intacte

OBS: Intact : se dit de ce qu'on n'a pas touché, de ce qui demeure dans l'état originel.

CONT: Opportunities for Canadians to experience unspoiled natural areas have become more limited and thus the need for action is more urgent.
OBS: Unspoiled: not marred or altered from a natural or original state esp. by industry, commerce, or tourism.