Rescue workers are nearly half-way through blasting 220 feet of rock to reach an area where they hope a trapped miner is still alive.  As of Thursday afternoon, they had advanced 101 feet to the last-known location of 53-year-old Hecla Mining Co. employee Larry Marek.  Mining company officials and friends expressed confidence that he could still be alive deep in the dark bowels of the Idaho silver mine as rescue efforts stretched into a seventh day.  A company spokeswoman said they are "still 100 percent focused on rescue efforts."  Marek has been trapped since late Friday afternoon when a tunnel collapsed in the Lucky Friday Mine.  A federal official says rescuers have managed to drill holes that provide air and drinking water to the area where Marek was last seen.  Meanwhile,   Gov. . "Butch" Otter is postponing his plans to visit Mullan and make the north Idaho town the centerpiece of his Capital for a Day program.       Otter says he is delaying the event because Mullan is dealing with ongoing efforts to rescue the miner trapped in a tunnel in the Lucky Friday mine.   The event could be rescheduled for May.

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