A second COVID-19 outbreak has been identified at the Ouray Silver Mines, where the company’s top executive estimated half of all employees may have already had the virus.

The state classifies an outbreak as two confirmed cases with onset within 14 days in the same workplace, facility or gathering. Two people who work in the office and tested positive earlier this month have since recovered from short illnesses and returned to work, Chief Executive Officer Brian Briggs said last week.

He said th...