The Nahanni National Park Reserve, sometimes known as "Headless Valley" or "Valley of The Headless Men", in the Dehcho Region of the Northwest Territories, Canada, protects a portion of the Mackenzie
Virginia Falls
Virginia Falls and Mason's Rock
Third Canyon, Nahanni River
The Gate, Second Canyon
Tufa
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Tufa is a variety of limestone formed when carbonate minerals precipitate out of water in unheated rivers or lakes. Geothermally heated hot springs sometimes produce similar carbonate deposits, which
Nahanni National Park Reserve
…adventurers each year, including the well-known "Figure Eight", and "George's Riffle" and "Lafferty's Riffle". The Rabbitkettle (Gahnîhthah) Hotsprings and tufa mounds () are the largest of tufa mounds in Canada. The largest of the mounds, the North Mound, is 27 m (89 ft) high and 74 m (243 ft) across. The…
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Tufa deposits at Huanglong, Sichuan, China