In the Arvilla mounds of North Dakota, archaeologist have discovered some interesting artifacts. The Arvilla mounds are considered part of a burial mound site, and the presence of these copper artifacts is not surprising to archaeologists.
Most people think of pottery as a burial artifact.
Well, the answer lies in examination of three other burial sites in the Midwest and Eastern United States. A mound complex is a series of common sites that share a specific type of burial pattern. What is so special about the Spiro Mounds is what lies below the surface. These finds are important because the copper can be used to tell archeologist about the culture at the Spiro Site. Another site is in Alabama, the Moundville Site.