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Kresien & Ravensborg laying out 1-acre plot for continuous census of small mammals. Stakes are being placed on grid established by strings. 100 stake-marked trapping sites per acre.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: forest injuries and protection
damage by animals
mammals
wild mammals
Location: Alaska
Description: Kresien & Ravensborg laying out 1-acre plot for continuous census of small mammals. Stakes are being placed on grid established by strings. 100 stake-marked trapping sites per acre.
Date: 5/18/1957

Maybeso clear cut.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: forest injuries and protection
damage by animals
mammals
wild mammals
Location: Alaska; Prince of Wales Island; Maybeso Valley
Description: Maybeso clear cut.
Date: 1957