The commune is situated in the Gers but close to the borders withLot-et-Garonne andLandes. It is built on a promontory on the right bank of the riverAuzoue.
In the neighbourhood are numerous old castles, medieval walled villages, small towns built around castles and many "sacred" places because theVia Podiensis and theWay of St. James of Compostela which pass through Montréal.
Thepaleontological site discovered in 1987 near Béon hamlet (on the D113 road towardGondrin, south-east of the village), of international interest[3] - 4 previously unknown species have been discovered there, and a skull from aPalaeomeryx among many other animal parts.[4]