Lonely Hills

The Lonely Hills are a series of hills in the North, within the lands of House Umber.

They are located northeast of Long Lake, southwest of Last Hearth and the Last River, and northwest of the Dreadfort.

[[Season 5]
The Lonely Hills appear on a map that the Boltons look over.

In the books
In the A Song of Ice and Fire novels, the Lonely Hills are within the lands of House Umber.

They may be outlying foothills of the Northern mountains, in the northwest of "the North" running along the western coast, which are themselves a smaller southern spur of the Frostfang Mountains which run Beyond the Wall.