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Which mountain ranges surround the Sichuan Basin?

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The Sichuan Basin is surrounded by several prominent mountain ranges and highlands that protect its interior from extreme temperatures. These surrounding features include:12

North: The Qin (Tsinling) Mountains and the Daba Mountains.13
East: The rugged Wu Mountains, which contain the famous Yangtze Gorges.13
South: The Yunnan-Guizhou Plateau and the Dalou Mountains.13
West: The Plateau of Tibet and the Daxue Mountains.13

These lofty highlands create a sheltered environment, contributing to the basin's mild climate and allowing for a long growing season.12