Western Marches
The Western Marches, once part of Oldtown’s domain under House Hightower, is the greener sister of the Eastern Marches in the Stormlands. They lie where the Red Mountains thrust northwest from Dorne into the southern Reach. Horn Hill, perched among the wooded foothills of those peaks, is the seat of House Tarly;[1] to the east stand Starpike of House Peake and the Caron Storm Lords of Nightsong, two other key strongholds. At sunset the Red Mountain peaks glow blood-red.[2]
In the Age of the Hundred Kingdoms this land formed the petty Kingdom of the Western Marches, from Horn Hill to Nightsong, until House Gardener of Highgarden unified it with the realms of the Hightower and the Arbor to forge the Kingdom of the Reach.[3] This is a region full of rocky ridges, rolling hills, and dense forests. The woodlands are most impenetrable around Horn Hill.[2]