Guadiana Valley Natural Park
Portugal · built 1995
Guadiana Valley Natural Park (Parque Natural do Vale do Guadiana) is a natural park in southeastern Portugal. It is one of the 30 areas which are officially under protection in the country. The top of the flow gage tower was reached by the Guadiana twice in 50 years.
NatureReserve data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).