Taroko National Park Baiyang Trail Taiwan was created through the collision of the Philippine and the Eurasian plates in what is known as the Penglai Orogeny. This movement occurred some four million years ago and is responsible for the formation of the Central Mountain Range that runs north-south through much of Taiwan. Even today the shift in tectonic plates continues and this area continues to rise a few millimeters every year. Marble formations only revealed themselves after millions of years of erosion and continued uplifting. Calcium Carbonate remains accumulated some 230 million years ago. These deposits through time, pressure, and the elements were gradually lithified into the limestone that in turn metamorphosed into marble. As Taiwan was uplifted from the pressures of the colliding plates, the erosive forces of weathering and water worked to carve out the gorges we see today. Erosion by the river against the constantly elevating land combined with the heavy sub-tropical rains resulted in a rapid transformation of the landscape. Marble, which is relatively hard and resistant to erosion, nevertheless relented to these forces resulting in the unusually steep and narrow canyons. The gorge itself was carved into the marble by the erosive power of the Liwu River.