Digraph

Mountain ranges
Alps
EuropeMountain ranges
Appalachian Mountains
Mountain ranges
Caucasus Mountains
Mountain ranges
Dolomites
ItalyMountain ranges
Karakoram range
Mountain ranges
Mountains and mountain ranges in Asia
AsiaMountain ranges
Oregon Coast Range
Mountain rangesOregon
Rocky Mountains
Mountain rangesNorth America
Sierra Nevada
CaliforniaMountain rangesNevada
Ural Mountains
Mountain rangesUral Federal District
AIMF, Colorado and Aspen Selected to Host the UN Mountain Partnership Global Meetinghttps://news.yahoo.com/aimf-colorado-aspen-selected-host-123300837.html
AspenMountain rangesWater security in the United States

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Mountain ranges
Mountains