Don't know if it's still available, and it may be of limited use, but at daz (ugh!) Fober's "the lake" has a companion, don't remember what it's called, but it's a winding road through a hilly landscape.  Has all the props to make what you can with it.  Not a freebie though, and like I said, maybe no longer available.  Might also look for "Worldbase Extreme", but no trees or anything else included with that.  Both released about the same time, just don't ask me how far back.  Both at daz.

Doric.

The "I" in Doric is Silent.