Valdera
Today Valdera means the part of Province of Pisa's territory form by
For cause social-economy belongs the below municipy:
- Pontedera (main city)
- Bientina
- Buti
- Calcinaia
- Santa Maria a Monte
It are in Arno river or Lucca's plane.
The Valdera has 116.941 citiziens in 624,17 km2