Southwest of Aomori City, lies the largest ruins of the Jomon period in Japan. The period dates back to around 10,500-300BC, when the residents of Japan were transitioning from a nomadic lifestyle to remaining permanently in one place. The ruins in Aomori are estimated to date from 4000-5500 years ago and clearly show a move to sedentism through the remains of a large village which appears to have existed for more than 1500 years.
Most of the excavated items have been reburied for preservation, but a few sites and artefacts are on display. Different types of dwellings and structures have also been recreated and visitors are able to enter most of the darkened smokey dwellings.
One of the largest discoveries at the Sannai-Maruyama Ruin site, was a large building made with pillars sunk into the ground. This discovery was important because it showed how people in this era actually possessed high-level construction techniques, which were previously though not to be developed until a later era.