Las Haldas or Las Aldas is a large archaeological complex from before and during the initial ceramic period (1800-1000 BCE) of Peru. Las Haldas is located on the Pacific coast approximately 300 kilometres (190 mi) north of Lima and about 20 kilometres (12 mi) south of the Casma river valley, noted for the extensive ruins of the Casma/Sechin culture. Las Haldas, a coastal community, coexisted with the inland agricultural communities in the Casma River Valley for most of its history.