“The Glen of Imaal Terrier, named for the region in the Wicklow Mountains of Ireland where it was developed long ago, is a medium sized working terrier. Longer than tall and sporting a double coat of medium length, the Glen possesses great strength and should always convey the impression of maximum substance for size of dog...This is a working terrier, which must have the agility, freedom of movement and endurance to do the work for which it was developed.... In general, they [terriers] make engaging pets, but require owners with the determination to match their dogs' lively characters.”