CASTLE DALE, Utah &#8212 Cody Allred closes his eyes and pictures his father and five other miners sitting in the impenetrable darkness of a collapsed mine waiting for a sign, any sign, of rescue.

“I picture my dad wondering `Where the hell are they? Any time now,'” he said.

Federal and mine officials are less hopeful. Knowing there has been no sign of life since the men went missing more than two weeks ago, they say the miners may be forever entombed in the mountain.

“I don’t know whether the miners will be found, but I’m not optimistic they will be found alive,” Bob Murray, chief executive of Murray Energy Corp., co-owner of the mine, said at a news conference Monday night.

Even as the community prepared Tuesday to say goodbye to Dale Black, a rescuer killed while trying to find the men in central Utah’s Crandall Canyon mine, the families and officials were at odds over whether enough had been done.

Searchers were expected to finish drilling a fifth hole by Tuesday night, but federal officials didn’t anticipate air readings that would indicate enough oxygen to support life.

Richard Stickler, head of the federal Mine Safety and Health Administration, said safety consultants brought in over the weekend have determined the shaking and shifting of the mountain represents too great a risk to allow rescuers to resume tunneling to try to reach the men, who have been trapped since the Aug. 6 cave-in.

The tunneling stopped after three rescue workers were killed and six were injured when the shaft they were working in collapsed Thursday night.