From Echoes of Angmar

You will come across many kinds of Landmarks in your travels, ruins haunted by oathbreakers, farms overrun by beasts, or hidden forest camps of goblins. These will be marked on your map with a red flag once you discover them.

Many deeds require you to find specific Landmarks throughout Middle Earth

Angmar Landmarks

Bree-land Landmarks

Ered Luin Landmarks

Evendim Landmarks

Misty Mountains Landmarks

North Downs Landmarks

The Shire Landmarks

Trollshaws Landmarks