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| British thermal unit (Btu) | | The quantity of heat required to raise the temperature of ... |
| Broad-leaved trees | | Trees which shed their leaves in the autumn. Most broadleaved ... |
| Broadcast burn | | Controlled fire used as a silvicultural treatment to burn a ... |
| Brow log | | Large log laid beside the track or road at a ... |
| Brown Nose | | An individual who incessantly follows closely behind someone he perceives ... |
| Browse | | 1.) Buds, shoots, and leaves of woody plants that can ... |
| Brush | | Growth of small trees and shrubs. ... |
| Brush a road | | To cover or fill mudholes, swampy places, and other depressions ... |
| Brush cut | | To clear away brush from a trail, survey line, or ... |
| Brush disposal | | Getting rid of slash on a logging operation. ... |
| Brush out | | To clear an area of brush for a trail, survey ... |
| Buck | | 1.) To saw a felled tree into short cuts.
2.) To ... |
| Bucker | | One who saws felled trees into required lengths, such as ... |
| Bucker | | Mobile machine designed to cut felled trees to a predetermined ... |
| Bucking | | Cutting felled and limbed trees into lengths. Also known as ... |
| Buckle guy | | Line attached to the middle of a spar tree or ... |
| Buckskin | | Snag; standing dead tree or log whose bark has fallen ... |
| Buffer strip or buffer zone | | 1.) Strip of uncut timber left between cutting units or ... |
| Bug | | The electrical contact switch for the signaling whistle used by ... |
| Bulk density | | Measure of weight per unit of volume of a material; ... |
| Bull block | | 1.) Main line block in high-lead logging.
2.) Large yarding block ... |
| Bull buck | | One who runs a felling and bucking crew. ... |
| Bull stick | | 1.) Steel bar for punching holes under stumps for placement ... |
| Bulldozer | | Steel blade mounted across the front of a standard crawler ... |
| Bummer | | Small truck or dolly, with two small wheels and a ... |
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