686 



Head spar 



High-lead block 

 trip block 



HIGH-LEAD YARDING 



Winch 



Haul-back 

 block 





Head spar 



SKYLINE YARDING 

 Tail spar Skyline 



LASSO ill 

 CABLEWAY 



(Switzerland) 



These logging machines and methods are discussed in the following chapter. 



