The soil of Thassos is mountainous and has many sources. A mountain range with five peaks lies in the centre of the island. With 1.203 meters, Ypsario is the highest summit. Initially, Thassos was famous for its honey and for its wood (used for shipbuilding and house building). Gold and silver were mined and gemstones were found. The olive cultivation is still extensive. Furthermore, Thassos is famous for its snow-white marble. The grooves of this are still to be admired.