GRAND CANYON NATIONAL PARK (CBS SF/AP) — The death of a Bay Area woman while hiking into the Grand Canyon apparently was heat related, Grand Canyon National Park officials said Friday.

Catherine Houe, 49, of Daly City was hiking down the South Kaibab Trail to spend the night at Phantom Ranch when she reportedly became dizzy, disoriented and stopped breathing, park officials said in a statement.

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The incident occurred late Wednesday afternoon and the high temperature at Phantom Ranch that day was 114 degrees, officials said.

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An investigation into the incident was being conducted by the National Park Service in coordination with the Coconino County Medical Examiner’s Office, officials said.

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Visitors to the Grand Canyon, especially hiking in the inner canyon, should be prepared for excessively hot days in the coming weeks, officials said.