Visitors wandering Colorado Avenue in western Colorado Springs today might never imagine what lies beneath their feet. Tunnels. And in the 1860s these few blocks were the business district of Colorado City. It was a violent time. And settlers wanted a safer way to move around. So they dug passageways that linked one building to the next. That secure route soon turned into an underground network for commerce and nightlife. Business owners used the tunnels to move goods. Others, to sneak into gambling halls and brothels. And after a vote to ban alcohol in 1913, bootleggers used the connecting corridors to move liquor. As Colorado City went…..