Browse Items (13651 total)

Colour photograph of stern to tug being raised for inspection at the Port Arthur Shipyards
on sheer legs

Stem canker in hybrid poplar. Nanticoke.

Stem breakage in black spruce. Planted 1965. Heavy snow in early winter (1968-69) followed by thaw & refreezing with ice storm to create a hard crust which then collapsed. J.D.Irving, Black Brook.

Stem breakage in black spruce. planted 1965. Heavy snow in early winter (1968-69) followed by thaw & refreezing with ice storm to create a hard crust which then collapsed. J.D.Irving, Black Brook.

Stem breakage in aspen, August 1970. Sharpe Twp.Engelhart ManagementUnit

Steep slope (200 ft valley) - erosion when forest removed, Black Brook

Aerial view showing a mine operation within a forest area

Aerial view of a mine operation at Atikokan

Aerial view of a mining operation at Atikokan

Steep Rock Iron Mine open pit operations, near Atikokan, January 1961.