Saint-Lambert is a charming district located in the Yvelines department of the Upper Normandy region in France. This picturesque area is known for its beautiful countryside, historic architecture, and rich cultural heritage. The district of Saint-Lambert is characterized by its quaint villages, rolling hills, and lush greenery, making it a popular destination for nature lovers and outdoor enthusiasts. The area is also home to several historic landmarks, including the stunning Château de Saint-Lambert, a grand 18th-century castle that is a testament to the region's rich history.