At Gull Lake, burials included grave goods such as a pottery cooking vessel, the bones and teeth of a moose, and the remains of a domesticated dog. Many other artifacts found during excavation came from the mound fill, the earth used to build the mounds, and were not intentionally buried; instead, they were debris from earlier or contemporary people who lived at the site. Stone tools including projectile points, scrapers, knives, and chipping debris were also found in the mound fill, but none were intentionally buried with an individual. These tool types indicate activity in the area beginning as early as the late-Paleo-Indian period around 7000 B.C. and continuing well into the Woodland period to about A.D. 900, with most stone artifacts dating to the Woodland Period. The stone used to make the tools also points to wider connections: quartz from local sources was most common, while other materials suggest links as far west as the Missouri River in North Dakota and as far east as Hixton, Wisconsin.