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Green density and moisture content of radiata pine in the Hume region of New South Wales
March 2012Australian Forestry 75(1)
DOI:10.1080/00049158.2012.10676383
Authors:
Julian Moreno Chan...

Radiata is about 450-500kg per cubic.Oak would be about a ton a cube...
Ground resistance is the biggest enemy in this case,just to get a log moving on flat ground without lift you have to apply...

Quarter the logs,dont halve them.It sounds like you are pulling them obliquely to avoid the root plate? If so,with the gear you have,bust them into quarters,round off (snipe) the sharpe edges and get...

Quarter the logs with your long bar and some wedges made from branches.

Or black powder if you can get it.

Trying to pull 3-4 foot thick logs with anything other than heavy machinery is a...