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Garibaldi Lake
Garibaldi Lake is a turquoise-coloured alpine lake in British Columbia, Canada, located 37 km (23 mi) north of Squamish and 19 km (12 mi) south of Whistler. The lake lies within Garibaldi Provincial Park, which features mountains, glaciers, trails, forests, flowers, meadows, waterfalls. The park is a wildlife protected area. The trails in the area are known as being among the most beautiful on earth.
==Geology==
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Garibaldi Lake lies in a deep subalpine basin, with its surface at nearly 1,500 m (4,900 ft) above sea level and a depth exceeding 250 m (800 ft). It is almost entirely surrounded by mountains except at its northwestern tip, with volcanoes along the north, west, and south sides and non-volcanic peaks along the northeast and eastern shores. Lava flows from the volcanoes of Mount Price and Clinker Peak to the south blocked the ancestral valley, damming the waters of the lake behind the lava formation known as The Barrier. This lava dam is over 300 m (1,000 ft) in thickness and about 2 km (1.2 mi) wide where it impounds the lake. A series of lava outcrops along the northwestern shore of the lake form the numerous tiny Battleship Islands, several of which have been connected to the shore by simple man-made stone causeways.
The turquoise colour of the lake's water is due to glacial flour suspended in the meltwater from its two primary inflows, the large Sphinx Glacier to the east and the Sentinel Glacier to the south on the flanks of Mount Garibaldi. Throughout most of the year, outflow from Garibaldi Lake occurs only via seepage through cracks in the lava dam, with Rubble Creek appearing from springs at the base of The Barrier. During spring snowmelt, outflow is sufficient for surface drainage to occur via a shallow channel across the lava flow, into Lesser Garibaldi Lake and Barrier Lake about 1.6 km (1 mi) west of the main lake's shore.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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