Newspapers across America, especially in rural areas like here in Sierra County, have been dying at an alarming rate, and Downieville was about to become the latest “news desert.” The obituaries for the paper had already been written. Don Russell, the hard-drinking, chain-smoking editor with a blunt writing style who had owned and run the paper for nearly three decades, was retiring, and he seemed happy enough for the paper to die with his retirement.

And then one night Mr. Butz was watching “Citizen Kane” on cable and thought, I can do that. He made the deal quickly, paying a price in the “four figures,” he said, plus the assumption of some debts, without even looking at the books.

Still, Mr. Russell, an old friend of Mr. Butz’s, was a reluctant seller. “His position was, it’s a losing proposition and someone who’d want it would be crazy,” Mr. Butz said. “He called me a romantic idealist and a nut case. And that’s not a paraphrase, but a direct quote.”

For the residents of Downieville — and there are not many; the population is about 300 — who for generations counted on The Messenger to arrive every Thursday, through wildfires and power outages and economic booms and busts, Mr. Butz has become an unlikely local hero, a savior of a cherished institution.

“Thank God for Carl, he stepped in,” said Liz Fisher, a former editor of the paper who lives across the street from its office and runs The Sierra County Prospect, an online news site. “It was devastating for everybody that we were going to lose The Mountain Messenger.”