When we log steep hillsides, in areas with few roads,
or if we're logging large trees, we often use cable
logging. Sometimes it is difficult to build roads for
logging machinery, so instead loggers use a metal tower
and a machine, called a yarder, that pulls logs into
the landing with a series of long cables.
On steep slopes the
yarder is parked at the top of the hills, and the logs
are usually pulled (yarded) uphill to the landing. The
logs are lifted halfway or completely off the ground,
which minimizes the impact on the soil.
Nowadays cable logging is very
popular, particularly in the mountains of western Oregon
where the hillsides are steep and the most popular reproduction
method involves clearcutting.
However, these systems are being used more frequently
for partial cuts and thins, as well as for logging on
flat areas where soil compaction is a major concern.