Kassara C., Petridou M., Tzortzakaki O., Papantoniou E., Galani A., Psaralexi M., Gkotsis D., Papaioannou H., Kati V. 2022. The roadless map of Greece. Mendeley Data, v2.
Here is the database of Greece’s roadless areas produced under the project NATLAND, which is funded by the Green Fund.