where can you find it?
America,  In the Santa Ana Mountains
Cougar
The cougar has the largest range of any wild land animal in the Americas. Its range spans 110 degrees of latitude, from northern Yukon in Canada to the southern Andes. Its wide distribution stems from its adaptability to virtually every habitat type; it lives in all forest types, as well as in lowland and mountainous deserts but also in open areas with little vegetation. In the Santa Ana Mountains, it prefers steep canyons, escarpments, rim rocks, and dense brush. 

The cougar was extirpated across most of its eastern North American range (with a notable exception of Florida) in the two centuries after European colonization, and faced grave threats elsewhere. It currently ranges across most western American states including occasional sightings from Alaska, the Canadian provinces of Alberta, Saskatchewan and British Columbia, and the Canadian territory of Yukon. 
what is the difference between puma cougar and mountain lion In the United States and Canada, it is also called "mountain lion"
wiki:13442656
Cougar [SEP] Distribution and habitat
The cougar has the largest range of any wild land animal in the Americas. Its range spans 110 degrees of latitude, from northern Yukon in Canada to the southern Andes. Its wide distribution stems from its adaptability to virtually every habitat type; it lives in all forest types, as well as in lowland and mountainous deserts but also in open areas with little vegetation. In the Santa Ana Mountains, it prefers steep canyons, escarpments, rim rocks, and dense brush. The cougar was extirpated across most of its eastern North American range (with a notable exception of Florida) in the two centuries after European colonization, and faced grave threats elsewhere.