The granite below the tor has fewer large feldspar crystals than at the tor itself, and this was preferred for building. There are several quarries on the northern slopes of Haytor down which were worked intermittently between 1820 and 1919. Between 1820 and 1858 the rock from these quarries was transported by the Haytor Granite Tramway to the Stover Canal. The tramway itself was built out of the granite it would carry, and due to its durable nature much of it remains visible today.