Spiennes

Spiennes (Spiene) is a sub-municipality of the city of Mons located in the province of Hainaut, Wallonia, Belgium. It was a separate municipality until 1977. On 1 January 1977, it was merged into Mons.

Heritage
The locality is well known for its neolithic flint mines, which are on the list of UNESCO World Heritage Sites since 2000.