Baby Doe's Matchless Mine: A Forgotten Colorado GemIn 1978, Baby Doe's Matchless Mine opened its doors at 2520 W. 23rd Avenue in Denver, overlooking I-25. What Was Baby Doe's Matchless Mine Like? Keep scrolling to check out vintage shots of the Baby Doe's Matchless Mine location that once operated in Birmingham, Alabama:Tragic Colorado Story Inspired Once-Thriving Restaurant Chain For many years, Baby Doe’s Matchless Mine, a restaurant chain inspired by a historic Colorado figure, was a staple in the Centennial State. Gallery Credit: Nate WildeWhat Happened to Colorado's Baby Doe's Matchless Mine? Unfortunately, Baby Doe's Matchless Mine would go out of business in 2004, and the building would be demolished in 2007.