The 1,958 artifacts excavated from the Tower 6 area and the remains of pit-dwellings, which were surveyed from 1992 to 1994, were designated as Important Cultural Properties in 2003. The artifacts excavated from the Tower 6 include clay artifacts and stone artifacts, as well as organic artifacts such as bone and antler artifacts (fishhooks, etc.), woven objects (bark baskets, etc.), and wooden objects. While those from the pit dwelling remains include Large flat clay figurines, clay artifacts and stone artifacts.