The Pilanesberg is home to a variety of wild animals and fauna & flora. The Big 5, wild dog, Roan, Tsessebe, Sable antelope and more than 360 species of bird can be found here. The mountain is an ancient volcanic structure, circular in shape, that rises from flat surrounding plains. It is formed by three concentric ridges or rings of hills, of which the outermost has a diameter of about 24 km. The Pilanesberg is located 100 km to the northwest of Pretoria and is for the greater part enclosed in a protected area known as Pilanesberg Game Reserve. The Elands River flows south of the Pilanesberg in an easterly direction. There are a number of platinum mines right at the perimeter of the crater formation. The name “Pilanes” comes from a historic Tswana chief named Pilane.