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Colorado Firecamp - wildland firefighter training

Apply on-line now for Colorado Firecamp's upcoming S-212 Wildland Fire Chain Saws classes:

  • March 7-10, 2024
  • April 11-14, 2024
  • May 2-5, 2024
  • May 30-June 2, 2024
  • June 20-23, 2024
  • July 11-14, 2024
  • August 1-4, 2024
  • August 22-25, 2024

Cost: $750 includes tuition, books, meals & lodging.

What to Bring to Class

Job Hazard Analysis (JHA)

MTDC Chain Saw Training

Felling Boss Training

Little Grass Valley Tree Felling Accident FLA — August, 2009

Freeman Reservoir tree felling fatality, 72-hour report & OSHA citation — June, 2009

Storm Mountain Ranch tree felling accident, OSHA citation — May, 2009

Andrew Palmer Fatality, Dutch Creek Incident, — June, 2008

OSHA citations

Volusia County Tree Felling Fatality
Scene Pictures — November, 2007

Big Creek Fire Accident — August, 2006

NWCG Hazard Tree and Tree Felling Task Group — link to hazard tree safety information

USFS Region 2 letter to Sen. Udall, re: S-212 cutting area — June, 2009

CSFS Faller Qualification Guidelines — May, 2006

USFS Region 2 Chainsaw Policy — February, 2005

S-235 Felling Boss Training, Issue Paper #12 — January, 1996

Wildland Fire Chain Saw Glossary — S-212 Pre-course work


Wildland Fire Chain Saw Glossary
Pre-course Work
NFES 2644

Grounding. Contact between a container and the ground point, usually by wire, to prevent generation of static electrical sparks. Fuel containers and chain saws must always be filled on the ground, not in a vehicle, to establish an adequate ground. Fueling of chain saws must also be done on the ground (not on a vehicle's tailgate), to ensure a positive ground is established.


Guide Bar. Long, thin projection of the chain saw upon which the saw chain travels. Improper use of the bar results in kickbacks and saw cuts. It is the extreme top and bottom of the bar's tip that is sensitive.

guide bar

Gunning (or Sighting). Technique of aligning the handle bars and/or gunning mark with the desired felling direction. Since the handle bars and/or gunning mark are at a 90 angle to the bar, exact position of the undercut (face), in relation to the desired felling location can easily be established. Not all saw handle bars are designed to be used for gunning. Check your saw.

Hands-on Training. Supervised training that demonstrates the application of knowledge and skill in a practical field exercise of proficiency.

Hang-up. A situation in which a tree lodges in another and is prevented from falling to the ground.


Hazard Tree. A standing tree that presents a hazard to people due to conditions such as, but not limited to, deterioration or physical damage to the root system, trunk, stem, or limbs, and/or the direction and lean of the tree.

hazard tree

Head Lean. One of the two natural leaning forces found in most trees. Head lean is the most prominent outward slant or lean of a tree in reference to its base.

head lean

Heartwood. The inner layers of wood which, in the growing tree, have ceased to contain living cells.


Hinge Wood/ Holding Wood. Section of wood located between the undercut (face, or notch) and the backcut. Its purpose is to prevent the tree from prematurely slipping from the stump until it has been committed to the undercut (face). It maintains the tree's alignment with the direction of fall. The holding wood must never be completely sawn off.

hinge wood / holding wood

Horizontal (Gunning) Undercut (face) Cut. First of the two cuts required to undercut (face) a tree. Its depth is minimally 1/3 the diameter of the tree and level.

horizontal undercut cut

Humboldt Undercut (face). One of the types of undercuts (face cuts) commonly used to fall a tree. The 45 sloping cut (face) section is removed from the stump of the tree.

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