This paper summarizes, to date, 44 years of research into the earliest recorded evidence of peoples in the Thunder Bay area. It is proposed that they were Caribou hunters moving north from the Minnesota/Ontario boundary waters area, to intercept caribou migrating to and along the glacial front of the Marquette Re-advance which stopped just south of Whitefish Lake c.a. 10,000 BP. This date is derived from an average of C14 dates from forests overridden by the re-advance. A collection of archaeological sites seem to indicate that as the ice margins retreated, caribou and crossing locations moved north with them. A possible three crossing locations, likely related, are suggested.
Such crossing locations generally have a habitation area, close to, but slightly removed from the actual crossing. The crossings are usually associated with a body of water for ease of taking the animals where they were vulnerable.
Based on artifact recoveries a general layout of one crossing location is proposed. It includes the crossing and possible butchering area. An adjacent habitation area with lookout, tent and work sites is suggested.
The ease with which taconite, a local siliceous material used for tool making, was found suggests that the people were in the area in a pre-vegetation situation as the ground was exposed by the ice margin retreat.