The archaeological survey at Orwell Lake, Otter Tail County, Minnesota was done by Impact Services Incorporated under contract with the US Corps of Engineers, St. Paul District. The survey was done in order to determine the presence or absence of cultural material at specified areas of the reservoir .

Crew Walking to the Perimeter of the Orwell Reservoir During the Phase I Investigation, 1986

Kathleen Roetzel and Jodi O'Gorman Evanson Taking Notes at the Orwell Reservoir During the Phase I Investigation, 1986

John Evanson Displaying the "Prehistoric Arrow" Found along the Perimeter at the Orwell Reservoir During the Phase I Investigation, 1986

Chuck Broste (Examining the Cutbank), Jodi O'Gorman Evanson and John Evanson Finding the Location for the Next Shovel Test at the Orwell Reservoir During the Phase I Investigation, 1986

Jodi O'Gorman Evanson, Chuck Broste and Michelle Loveall at the Orwell Reservoir During the Phase I Investigation, 1986

A Cultural Resource Survey at Orwell Reservoir, Otter Tail County, Minnesota. Richard Strachan and Kathleen Roetzel, 1986.