Here, the "island" is attached to the original layout and the 
new inner track roadbed can be seen making the transition between
new and old.  Also, last year a turnout was added to the track into
the logging operation near the tunnel, which provides a nice siding next 
to the main line for log carrying freight cars.  

These and other modifications required re-routing of vehicle roads, which
at this point are in basic white plaster condition;  You would not want
to drive on them yet!