"If Alden isn't willing to do good journalism here, it should sell The Post to owners who will," the paper said.
"News matters," reads a large headline. Colorado "should demand the newspaper it deserves."
Alden Global Capital acquired the paper in 2010 and operates it through a subsidiary, Digital First Media. The Post has a weekday circulation of around 170,000 and 8.6 million unique monthly visitors to its website.
Chuck Plunkett, The Post's editorial page editor, was the force behind the articles, The New York Times reports, with no advance notice to Digital First Media executives or the paper's editor, Lee Ann Colacioppo.
Guy Gilmore, COO of Digital First Media, called Colacioppo after the articles went online, The Times reports. She said the two opted to let the stories stay online and the Sunday print section go forward as planned. Plunkett will also stay on as editorial page editor, she said, according to The Times.
Mayor Michael B. Hancock weighed in on the effort. "Denver is so proud of our flagship newspaper for speaking out," he said in a statement.
The Post was told last month to cut 30 jobs from a newsroom whose count was already below 100. Recently the newspaper moved from its headquarters in downtown Denver to an office in Adams County.