Red Lake (Romania)

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Lacul Roșu (Gyilkos-tó)
Lacul Roșu (Gyilkos-tó)
Location	Eastern Carpathians
Coordinates	46°47′22″N 25°47′13″E / 46.78931°N 25.7869°E / 46.78931; 25.7869
Basin countries	Romania
Max. length	8 kilometres (5.0 mi)
Max. width	300 metres (980 ft)
Surface area	11.47 hectares (28.3 acres)
Average depth	9.7 m (32 ft)
Max. depth	12.5 metres (41 ft)
Water volume	587,500 cubic metres (476.3 acre⋅ft)
Surface elevation	983 metres (3,225 ft)

Red Lake is a natural dam lake in Harghita County, Romania. It is located in the Hășmaș Mountains, on the upper course of the Bicaz River, and lies at the foot of the Hășmașul Mare Peak [ro], near the Bicaz Gorge, at a distance of 26 km (16 mi) from Gheorgheni and 30 km (19 mi) from Bicaz.

The lake formed following the collapse of a slope due to the earthquake of January 23, 1838 at 18:45, measuring 6.9 magnitude on the Richter scale, VIII intensity.^[1] The landslide blocked the course of the Bicaz River and the lake formed behind this dam.^[2]: 124

According to measurements in 1987, the lake has a perimeter of 2,830 m (9,280 ft), and covers an area of 11.4676 ha (28.337 acres);^[3] the volume of water that accumulates is 587,503 cubic metres (768,425 cu yd). The lake was formed at an altitude of 983 m (3,225 ft), in a depression with a predominant subalpine climate.