Profile under the fallen trunk of the windthrown pine; n.b disturbance to the right; also slides numbers 33, 34, 35. Spodosol, P, C, WN, D.

Windthrow as in slides #33, 34 and 36; n.b. depth of buried Ae and H and the inversion; yellow/red 'firing' of the iron in B where a root burned (Pine?). Spodosol, P, C, WN, D.

Windthrow same as slide #33, but from angle to show buried Ae and B of profile. Spodosol, P, C, WN, D.

Windthrow mound in Great Lakes-St. Lawrence forest at Dorset; under maple/beech which had white pine and fire history. Spodosol, C, WN, D.

Sol brun acide near Alsea; closeup of A to show concretionary 'shot' structure; same profile as slide #31. Inceptisol, P, S, F, D.

Sol brun acide developed in what is described as a yellow-brown laterite (bisequum ?); called 'Klickitat' series by U.S. soil survey; near Alsea. Inceptisol, P, C, F, D.

Sol brun acide in Eocene sandstone near Alsea, Oregon; mapped as the 'Bohannon' series by U.S. soil survey; photo in douglas fir cutover. Inceptisol, P, C, F, SB.

Photo of a black solodized solonetz by Soil survey in Alberta. Aridisol, P, C, D.

Typical black prairie soil near Irricana; n.b. gopher hole. Mollisol, P, C, D.

General view of profile under 70 year jack pine; water-laid sand at the Plonski Forest; n.b. root system and concentration in upper portion of the 'soil'. Spodosol, P, C, F, D.