Brosno Dragon — Ancient Serpent Reported From Russian Lake for Eight Centuries

Lake Brosno in the Tver Oblast region of Russia is said to be home to a large serpentine or dragon-like creature that has been reported in accounts dating back to the 13th century. The lake is unusually deep for its size at 40 meters, and the surrounding forest and remoteness have kept it relatively uninvestigated. The earliest written accounts describe an incident during the Tatar-Mongol invasion of 1237 when the army of Batu Khan allegedly stopped to water their horses at Lake Brosno. A creature reportedly emerged from the water and devoured horses and men, causing the invaders to retreat from the area. This account is considered legendary by historians but reflects the antiquity of local traditions about the lake's monster. More recent accounts from the 19th and 20th centuries describe a large dark form seen moving through the water, causing waves inconsistent with the wind, and occasionally surfacing near boats. Local fishermen have historically avoided the lake's deeper areas. In the 1980s, a group reportedly photographed a large form in the water from the shore. Russian cryptozoologists and journalists have investigated the lake. Sonar surveys have shown some unusual readings in the deeper sections but nothing conclusive. Theories about the creature's identity range from a giant wels catfish to a surviving plesiosaur to a naturally occurring column of gas erupting from the lake bottom. The Brosno Dragon has received less international attention than the Loch Ness Monster but has an older documented history.