The Gull Lake Mounds were excavated in 1969 by the University of Minnesota. This excavation was one of the last large-scale mound excavations conducted in Minnesota. The human remains and many of the artifacts removed from these mounds were returned by the U.S. Army Corps of Engineers, St. Paul District, to the Dakota people for reburial in 1998.
The Gull Lake Burial Mounds were built in episodes over time. Mound #8 incorporated several smaller mounds into a linear shape as additions were made horizontally. Mound #1 began as two separate mounds joined to form an elongated shape. Most of the other mounds are considered circular.
The earth used to construct the mounds was gathered from the surrounding area and contained artifacts from centuries of village life at this location. The artifacts in the mound fill, as well as those placed with the dead, help date the construction of the mounds. Mound #1 is believed to be the oldest mound in the group.
History and traditions suggest that the Headwaters Region of Minnesota was the homeland of the Eastern Dakota. This location is one of their ancestral villages and burial grounds.
Woodland Tradition is a general term given by archaeologists to the later prehistoric people of the eastern North American woodlands. This tradition is generally thought to begin with the introduction of pottery vessels and burial of the dead in mounds. It was a period of population increase and more established villages based on horticulture, or in northern Minnesota, the gathering of wild rice.