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Search efforts resumed for a fourth day on Monday for a 29-year-old Wyoming man who disappeared beneath the waves of Lake Powell while cliff diving.

Christiana Admiral, a spokeswoman for the Glen Canyon National Recreation Area, said the area of the lake where William "Billy" Burke of Jackson, Wyo., failed to surface after a 90-foot leap last Friday was near Face Canyon.

National Park Service and Cocino (Ariz.) County Sheriff's Office personnel resumed their search with daylight Monday. The search, by boat, along the shoreline and with divers and remote-controlled submersible camera gear, was focused on a 150-foot-deep section of the lake.

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