Tree-Ring Sampling

Increment Borer
Collecting a core sample from a plains cottonwood (Populus deltoides)

Increment Borer
Collecting a core sample from a California sycamore (Platanus racemosa)

Dry Wood Borer
Collecting a dry wood borer sample from a dead Rocky Mountain juniper (Juniperus scopulorum)

Crosscut Saw
Collecting a cross-section sample from a dead mountain hemlock (Tsuga mertensiana)

Pruning Saw
Collecting a root crown sample from a dead Engelmann spruce (Picea engelmannii)

Saw/Chisel/Hammer
Collecting a fire scar wedge sample from a live Jeffrey pine (Pinus jeffreyi)

Excavation
Unearthing deadwood remnants from a volcanic deposit

Rappelling
Using mountaineering techniques to collect limber pine (Pinus flexilis) core samples