Heishui State Site, Hexi Culture Treasure Also known as Blackwater Country Castle, commonly known as Blackwater Country or Old Ganzhou, also known as Ganzhou Old Town, is the station on the Silk Road, more than 4,000 years ago. History. arrived at the site of the Blackwater State at sunrise, and the sun's glow slowly jumped out of the horizon of the East. The chimney of the distant factory smoked smokelessly, and the morning fog was not scattered. This is the most common morning scene in Ganzhou, but behind us is a blackwater country site with a history of four thousand years. Its a daggers silence, and its awesome. Far away, we saw a mound of ten meters high first appearing in the field of vision, here is the site of the southern city of the Blackwater Country. In the east, it is the entrance to the south city. As everyone knows, there is a city hidden in the middle of the mound. The sand-sand piles piled up along the sand dunes along the city wall climbed the city wall, and you can see the core area in the city. The street layout and the layout of the buildings in the city are faintly visible, and the building sites are dense. Between the weeds and gravel, there are a large number of bricks, tiles, gray pottery pieces and residual stone mills from the Han Dynasty to the Wei and Jin Dynasties, which makes people appreciate the beauty of the ruins. More than a thousand years ago, it was a bustling city. Only a thousand years later, the city has only one outline. The broken turrets on the side of the wall are the most obvious signs. Although it has been invaded by the millennium, it still looks at the broken old castle alone. Perhaps the Blackwater Country, which has gone through two thousand years, does not need to be lively and disturbed, as long as it is still standing in the desert, immortal like a poplar tree.