Regional road 213(link is only in Finnish) got new line in 80's and 90's. In few places there are still remains of the old line and most of them are gone by now. This is the longest section that is still accessible, mostly because there are quite few house holds that lives next to this old road.
This is between Ypäjä and Loimaa. You can see legendary grain silos in Loimaa at the horizon.