I do not know if there are any recent developments in this search:

Former SAR Member Missing in the Rock Creek Area


WEDNESDAY, AUG. 21, 2013 – A multi-agency search and rescue effort was launched at about 10:30 p.m. Tuesday night after Inyo County Sheriff's dispatch was notified of an overdue hiker.
According to Sheriff's Public Information Officer Carma Roper, 47 year-old Swall Meadows resident Matthew Mooney set out Tuesday for a day hike in the Rock Creek area. Mooney contacted family via cell phone at about noon Tuesday, saying he was returning from Round Valley Peak and would be home in a couple hours. He has not been seen or heard from since.

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