The Wushih Pi headland is part of Taiwan's Central Mountain Range which extends from Su-ao in the northeast to Eluanbi at the southern tip of the island; forming a ridge of high mountains and serving as the island's major watershed for rivers and streams. The mountains are predominantly composed of hard rock formations resistant to weathering and erosion; although heavy rainfall has deeply scarred the sides with gorges and sharp valleys. Taroko National Park; located on the mountainous eastern side of the island; has good examples of mountainous terrain; gorges and erosion caused by a swiftly flowing river.