Portalegre is located on the edge of Serra de São Mamede, a mountainous area with a variety of flora and fauna, part of which has now been designated as a natural park. The city of Portalegre itself is of Roman origin. The north side of the Serra De São Mamede Natural Park is particularly interesting for walkers. Here deciduous forests are regularly interspersed with cultivated land. More to the south the slopes are planted with beautiful and also some rugged pine forests. Even further south, the mountains gradually merge into the rolling Alentejan plain with its montados, a beautiful park-like landscape with scattered cork or holm oaks.