Tahtsa Lake

TAHTSA LAKE, 118 sq km, is a long (30 km), narrow lake 35 km inland on the east side of the COAST MTS from KEMANO. Fed by glacial streams flowing out of the mountains, it used to empty eastward via the Tahtsa R into OOTSA LK. In 1952 construction of the KENNEY DAM on the NECHAKO R increased water levels in the lake; it began emptying westward through a tunnel excavated through Mt DuBose to Kemano, where water from the lake is used to produce HYDROELECTRICITY for ALCAN's aluminum SMELTER at...

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