Where did the Ingalls family first live after moving to Plum Creek in the novel, On the Banks of Plum Creek?

The earthen house is the first home of Laura and her family at Plum Creek. It is a home that is dug out from the creek’s embankment, with the fourth wall being constructed of sod, and the roof of wood, earth, and grass. The house is small but sturdy, and proves to be a good first home for the family.