For over 30 years, starting in the 1940s, hundreds of tons of surplus ammunition was dumped into Lake Mjøsa, Norway's largest lake. In 2022, a military vessel used an autonomous underwater ...
Divers from the Mission Mjøsa project had discovered a well-preserved shipwreck in Norway's Lake Mjøsa. Researchers believed the ship was a 'føringsbåt,' and estimated to be 700 years old.