TréhetTréhet is a former commune of the Loir-et-Cher department in central France. On 1 January 2019, it was merged into the new commune Vallée-de-Ronsard.GeographyThe commune is situated on the left bank of the Loir close to the Sarthe department communes of La Chartre-sur-le-Loir and Ruillé-sur-Loir and is traversed by the Niclos stream.EtymologyThe name derives from Latin trajectus.SightsIts small partly Romanesque church is dedicated to Mary has recently been restored, revealing early wall paintings.