Mysterious patterns appeared on the bed of a drying lake in southern China.

Video filmed in the city of Yueyang in Hunan Province on November 11, 2022, shows strange giant patterns on the floor of Dongting Lake, the second-largest freshwater lake in the country.

Professionals have confirmed that the strange patterns are not the ruins of an ancient city or ancient tombs. They might be the traces left by modern embankments.

The video was provided by local media with permission.

近日，湖南岳阳，长江干旱致洞庭湖水位持续下滑，干涸后的洞庭湖竟然露出大片神秘“二维码”，引起关注。
从航拍的镜头来看，在湖床上的黄沙中间，有一块被水沟围起来的浅红色的接近长方形的环绕区。环绕区域内有三处方形图案，图案中有不规则土堆凸起，形成了类似二维码的造型。环绕区其他部分有大片带状图案，在河床上整齐而紧挨着铺成一片。在其他空白区域，还分布着数十个单个土堆，每个土堆被小水沟环绕或夹在中间。
据悉，这片区域距离岸边较远，车辆开进去一个半小时停下，再目前，步行进去很久才到达。该区域已经初步排除了古城遗址和墓葬的可能，岳阳市考古专家正对该神秘图案展开研究。