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Log driving is a means of moving logs (sawn tree trunks) from a forest to sawmills and pulp mills downstream using the current of a river. It was the main transportation method of the early logging industry in Europe and North America .
Logs further from the road can be shoveled to the landing in a few passes back and forth. Skidding and cable logging can be more cost efficient for logs further from the road. Shovel logging can make use of the loader between log truck arrivals. It can also reduce soil disturbance, since it requires only a single pass to move all the logs in reach.
Today, heavy machinery such as yarders and skyline systems are used to gather logs from steep terrain, while helicopters are used for heli-logging to minimize environmental impact. [16] Less common forms of logging, like horse logging and the use of oxen, still exist but are mostly superseded.
Oshkosh M911 tractor hauling logs. A logging truck or timber lorry is a large truck used to carry logs. [1] Some have integrated flatbeds, some are discrete tractor units, and some are configured to spread a load between the tractor unit and a dollied trailer pulled behind it. Often more than one trailer is attached.
The reason for elevating the lines (cables) at the head end is to assist in pulling the logs free of obstructions on the ground. Also if the trees are being partially lifted as they are transported it is less disruptive to the ground which can be an environmental issue. High lead is a popular method of logging on the West Coast of America.
Cleaner wood since the logs are not skidded on the ground to the landing (in tree length more than full tree) More fresh wood (in tree length more than full tree) Less damage to retained trees in thinning operations; Typically requires fewer types of machines in an operation; No need to clear large landings close to the road
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A log driver using a peavey. A cant hook, pike, or hooked pike is a traditional logging tool consisting of a wooden lever handle with a movable metal hook called a dog at one end, used for handling and turning logs and cants, especially in sawmills. A cant hook has a blunt end, or possibly small teeth for friction.