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Black and white photograph of the High Falls of the Pigeon River; A waterfall which is located on the border of Ontario, Canada and Minnesota, U.S.A. A wooden structure can be seen at the top of the falls.

Photographer and donor are unknown.

Black and white photograph of the High Falls of the Pigeon River: a waterfall which is located on the border of Ontario, Canada and Minnesota, U.S.A. Some wooden structures and debris can be seen at the top of falls.

Photographer and donor are…

Hietikon - private forest nursery- 2+1 Pinus sylvestris conventional transplants

Hietikon - 1+0 Pinus sylvestris in temporary plastic house

Hietikon - Pinus sylvestris in paper pots

Hietikon - supports for frames of plastic greenhouses

Hietikon - 1+0 BEv in paper pot

Hietikon - clearing more land for plastic greenhouses

Genealogy: Hieta and Santtu. Donor: Helen Laine.

Hexagonal cracking in clay at Caledon, where the upper horizons have been eroded away. Mollisol, HC, S, E, D.