The Grampian Mountains.
Grampian Mountains definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Grampian Mountains definition by American Heritage Dictionary
A mountain range of central Scotland extending northeast to southwest and forming a natural barrier between the Highlands and the Lowlands. Ben Nevis, 1,343.8 m (4,406 ft), is the highest point.