She, her brother and sister, from Falun in central Sweden, were on a path on La Vormaine mountain near Le Tour, France, when, for unknown reasons, they went the wrong way and the two sisters fell more than 400 feet from the mountainside, the news Web site www.thelocal.se reported Friday.
The sister, age 22, was injured and taken by ambulance to a hospital in Chaminoux, in eastern France. The brother, 20, was not hurt.
The Swedish Foreign Ministry confirmed the death but had not released any further details, Swedish news agency Tidningarnas Telegrambyra reported.
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