Pages that link to "File:Measuring elevation with a line level. Historical archaeology at the old Champoeg townsite, Champoeg, Oregon (USA) 1973 (2149089991) (cropped).jpg"
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The following pages link to File:Measuring elevation with a line level. Historical archaeology at the old Champoeg townsite, Champoeg, Oregon (USA) 1973 (2149089991) (cropped).jpg:
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