A Valley of Turquoise Lakes in the Minshan MountainsIn a remote corner of northern Sichuan Province, a Y-shaped valley system hides more than a hundred lakes so clear and so richly mineralized that they glow in shades of turquoise, sapphire, and jade. Jiuzhaigou — literally "Valley of Nine Villages," named for the nine Tibetan settlements once scattered through it — is one of China's most visually extraordinary natural landscapes, and one of the best-preserved examples of alpine karst hydrology anywhere in the world. Inscribed on the UNESCO World Heritage List in 1992 under the criterion of exceptional natural beauty, the park draws millions of visitors each year to see terraced lakes cascading into waterfalls, forests that shift color with the seasons, and snow-capped peaks reflected in still water. From Logging Camp to Nature ReserveJiuzhaigou's transformation into a protected area came only after it nearly disappeared. Commercial logging began in the valley in 1975, stripping timber from the surrounding slopes at an industrial pace. Alarmed by the damage, Chinese authorities halted the logging in 1978, when the State Council approved the creation of the Nanping-Jiuzhai Valley Nature Reserve. The site was formally designated an Area of Scenic and Historic Interest in 1982, and a dedicated park administration bureau was established in 1984 to manage tourism and conservation. International recognition followed quickly: UNESCO World Heritage status in 1992, a Man and Biosphere Reserve credential from UNESCO in 1998, and Green Globe 21 certification for sustainable tourism in 2002. Geology That Built a FairylandThe valley's color and clarity come from geology rather than artifice. Water draining from the surrounding limestone peaks — some rising above 4,700 meters — dissolves calcium carbonate as it flows, which then precipitates back out to build travertine dams, terraces, and shallow, mineral-rich pools. Over thousands of years this process has produced a staircase of more than 114 lakes, linked by around five major waterfalls, spread across three converging valleys: Shuzheng, Rize, and Zechawa. The Rize Valley alone stretches some 18 kilometers. The widest of the park's cascades, Nuorilang Waterfall, spans roughly 270 meters — reportedly the broadest waterfall in China — tumbling from an altitude of about 2,365 meters. Because the mineral content and depth of each pool differ slightly, neighboring lakes can display strikingly different colors even on the same afternoon. An Ecological RefugeBeyond its scenery, Jiuzhaigou functions as a biodiversity stronghold in the eastern edge of the Tibetan Plateau. The reserve shelters an estimated 140 bird species and provides habitat for several endangered mammals, most notably the giant panda and the Sichuan takin, a large, goat-like ungulate found only in parts of China. Its forests transition from broadleaf woodland at lower elevations to conifer stands and alpine meadow higher up, a vertical range of ecosystems that has helped preserve genetic diversity increasingly rare elsewhere in China. UNESCO's original inscription noted that at the time of listing, around 800 people — members of the local Tibetan community — still lived within the reserve's boundaries, in villages whose residents speak a distinct Jiuzhai Valley Tibetan dialect. Surviving a Major EarthquakeJiuzhaigou's recent history includes a serious natural disaster of its own. On August 8, 2017, a magnitude-7.0 earthquake struck Jiuzhaigou County, damaging trails, tourist infrastructure, and some of the park's hydrological features, and forcing a full closure. Recovery was gradual: the park reopened partially to visitors in March 2018, admitting limited numbers to unaffected areas while restoration continued elsewhere. Full reopening did not come until September 28, 2021 — more than four years after the quake — once damaged trails and facilities had been rebuilt and geological monitoring confirmed the site's stability. The episode underscored how the same tectonic forces that shaped the Minshan Mountains, and indirectly the valley's karst landscape, remain active beneath it. Visiting Jiuzhaigou TodayToday the park operates as one of China's flagship nature tourism destinations, with a shuttle bus system carrying visitors between the three valleys and dozens of named viewpoints — Five Flower Lake, Long Lake, Mirror Lake, and Pearl Shoal among the most photographed. Conservation authorities continue to manage visitor numbers and infrastructure to balance access with the fragile travertine formations that make the valley unique, a tension UNESCO itself flagged at the time of inscription. Autumn, when the surrounding forests turn shades of red and gold against the blue-green water, remains the most popular — and most crowded — season to visit.
Location: Jiuzhaigou County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province, China