Where is the name of the cave was found came from, because the word "highway". Northern translation in that cave and is located on the cliffs, it's called the cave the Royal Pha wiang Vieng.
The name comes from the caves found. Because the word "capital" in the north and that the cave is located at Pha Pha Luang Cave, so-called walled town.
This is the name since we found caves, because "capital" in northern means big and the cave is located on the cliff Chiang is called. The Royal Cliff Chiang