
In the past, Boréon was part of Italy and only became French in 1947; its access road dates from the 1950s. This domain of more than 4000 hectares, a former reserve of the kings of Italy, essentially consists of pasture and forests. It was formerly a haunt of salt smugglers.
Today, all of this natural valley is a classified site. Its development is based on tourism which respects natural environments.