Original sentence: The Asón valley is known for its rugged solid limestone, which house inside caving extraordinary wealth and ancient forests of beech, oak and holm the most notable in the eastern part of Cantabria
Edited sentence: Notably its beautiful scenery of mountains to the valleys with green meadows come together.The Asón valley known for its rugged solid limestone, which house inside caving extraordinary wealth and majestic and interesting ancient forests of beech, oak and holm undoubtedly the most notable in the eastern part of Cantabria