PB060120

PB060121

Dozer leveling subsoil

Dozer beginning to level subsoil returned from spoil pile

Bulldozer replacing top soil containing woody debris

Ice-built non-stripped pad (note that the site is not perfectly
level)

Cross-section of pad material (wood chips and ice)

Non-stripped site after snowmelt

Ripping of the frozen pad material so it can be spread evenly over the site contours