Roots of young poderosa pine in pumice soil (1500 yrs ago) n.b. the two-tiered root system.

A full listing of roots slides as part of the Ken Armson fonds.

Ross-section through a hammock of Cryorthod. N.B. Ah layer under hummock and ice wedge.

Rossport.

Rossport.

Rossport, Ontario. Donor: Karila.

Orillia Rotarians to help canvass for Simcoe University.

A rotary mulcher built at the nursery. Mulching.

Rotne single grip harvester cutting to length. Repap, Miramichi.