Somebody did a great job mapping the forests and tracks south of Munich, Germany (the area south of Taufkirchen) using Potlach alpha.

But, unfortunatelly she/he used wrong tags:

key = track

instead of

highway = track

So, the forests appear on the map, but not the tracks :-))

I started to *add* this missing tag using JOSM (now visible with Osmarender),
but I must confess: it's a lot of work to do.

When starting to map, please read the HowTo for choosing tags:

http://wiki.openstreetmap.org/index.php/Map_Key

otherwise your work could be in vain.