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▲ The terrain of Taroko Swallow Grotto Trail was carved and sculpted by the Liwu River over countless years, and formations like the Indian Chief Rock are among its amazing masterpieces.


▲ During its development, the rapid currents of the Liwu River sometimes encounter obstacles, forming whirlpools. These swirling waters carry river sand, continuously eroding the rock walls, which over a long period of time creates pothole formations.


▲ Between Taroko Swallow Grotto Trail and Tunnel of Nine Turns is a vertical, steep marble cliff, approximately 1,200 meters wide and 1,100 meters high. Across the stream from the highway is Zhuilu Old Trail, a deep, narrow, and vertical cliff formed by the Liwu River cutting through the ridge of Sanjiaozhui Mountain.


▲ During its development, the rapid currents of the Liwu River sometimes encounter obstacles, forming whirlpools. These swirling waters carry river sand, continuously eroding the rock walls, which over a long period of time creates pothole formations.