Mount Bona
The mountain's massif is covered almost entirely by icefields and glaciers , and it is the principal source of ice for the Klutlan Glacier , which flows east for over into the Yukon Territory of Canada . 
<triplet> Klutlan Glacier <subj> glacier <obj> instance of <triplet> Yukon Territory <subj> Canada <obj> country <triplet> Canada <subj> Yukon Territory <obj> contains administrative territorial entity