Vexin Regional Natural Park
Local name: Parc naturel régional du Vexin français
The Vexin Regional Natural Park occupies a vast limestone plateau on the northeastern outskirts of Ile-de-France. Most of the park area is covered by agricultural crops and traditional agriculture is the greatest cultural and natural value of the park. Among the natural resources, forests, limestone structures and swamps play an important role.
The Vexin Regional Natural Park was established in 1995 and covers an area of 65,670 ha in the Val d'Oise and Yvelines regions. The plateau dominates the surrounding regions with an elevation of about 100 m. The area is crossed by the rivers Seine, Oise, Epte, Troësne and Esches, which form the boundaries of the park.
The landscape of the plateau is diversified by river valleys, e.g. Viosne, Sausseron and Aubette de Magny. The hills of Arthies, Rosne and Marines are covered with forests and overlook the plateau. The most common crops are wheat, barley and rape. One of the most valuable cultural monuments is the Théméricourt castle, where the seat, management and museum of the park are located.