It is recorded that the drawarves in the ealier ages were the most important builders of roads im Middle-Earth. Think about old Dwarven-Road running from the Havens of the Falas east at least as far as the eastern edge of Mirkwood and proberbly beyond that further on to the eastern Dwarven kingdoms. Road building need a lot of stone, especially if it is a good road and these were good roads considering how long they were in use.
Respectfully
Findegil
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