River Road

The River Road is a major highway in the Seven Kingdoms. It runs west to east across the continent from Casterly Rock and Lannisport on the west coast, the crossroads with the Kingsroad and the High Road near the Crossroads Inn.

The River Road exits the Westerlands through the only major pass in the mountains, watched over by the fortress of Golden Tooth. On entering the Riverlands it predominantly runs alongside west bank of the Red Fork of the Trident River, hence the road's name. The River Road leads roughly north-east from Lannisport until it reaches Riverrun, the capital of the Riverlands. East of Riverrun the Red Fork and the River Road both turn from a northeasterly to an easterly direction. The River Road crosses the Red Fork of the Trident at Riverrun, so that it now lies on the south bank of the river, running through the Riverlands and the heart of Westeros. In the east, the River Road crosses to the north side of the river at the Ruby Ford, just south of where all three forks of the Trident merge. Just north of the Ruby Ford, the River Road joins with the Kingsroad and the High Road at the crossroads.

Loosely speaking the High Road is the eastern continuation of the River Road, but they are considered to be separate thoroughfares, apparently due to the major differences in topography between them (wide and wet river paths versus treacherous and narrow mountain paths).

In the books
In the Song of Ice and Fire novels the River Road is in the same location.