相模川
Topographically, the prefecture consists of three distinct areas. The mountainous western region features the Tanzawa Mountain Range and Hakone Volcano. The hilly eastern region is characterized by the Tama Hills and Miura Peninsula. The central region, which surrounds the Tama Hills and Miura Peninsula, consists of flat stream terraces and low lands around major rivers including the Sagami River, Sakai River, Tsurumi River, and Tama River.