Broumovsko Protected Landscape Area (PLA) was declared by the Czech Ministry of the Environment in 1991 covering an area of 410 km² to protect and gradually renew the landscape value, its appearance and typical characteristics and to form and develop an ecologically optimal system of landscape and natural resource usage. Its landscape is picturesque with islands of wilderness. The purest water flows under the area in the depths of the Polická Cretaceous Basin and Broumovsko is a settled and cultivated landscape. The area has a rich history with a wealth of religious buildings and folk architecture.
Tree Monuments are the living memory of the landscape. Within Broumovsko PLA 20 exceptional trees have been declared as tree monuments. An information panel is placed by every one of them giving details of its species, dimensions, age and treatments, and sometimes its history or the legends associated with it.
The most valuable natural beauties of Broumovsko are protected by two national nature reserves. Adršpašsko-teplické skály NNR with its area of 17 km² is one of the largest complexes of castellated rocks in central Europe. Together with the Broumovské stěny NNR they are exceptional for their relief and climate, permitting the occurrence of exceptional plant and animal species. The peak area of the Ostaš table mountain and the extremely rugged terrain of Křížová cesta u Adršpachu were declared Nature Reserves in 1956. Borek and Kočičí skály are Nature Monuments.
Due to the presence of certain plant and animal species as well as habitat types, Broumovsko PLA is of international importance. Within the Natura 2000 system of European protected areas, the Broumovsko SPA – Bird Area was declared in January 2005 to protect the peregrine falcon (Falco peregrinus) and the eagle owl (Bubo bubo). The Bird Area includes all of the important sandstone units within Broumovsko PLA, which provide an ideal habitat for these species. Parts of the Metuje and Dřevíč rivers have been included on the national list of Sites of Community Importance in order to protect the brook lamprey (Lampetra planeri). Thanks to the presence of rare biotopes, the Adršpašsko-teplické skály, the Broumovské stěny and the previously unprotected peak of Žaltman have also been included on the national list.