Frank Day, a Boulder restaurateur who was responsible for creating several national chains and for helping to jumpstart the craft beer industry in Colorado, has died at 93.

“We are saddened to confirm the passing of Frank Day… after a brief illness. He touched the lives of many, and his absence will be deeply felt,” Day’s company, Concept Restaurants LLC, said in an emailed statement Friday. “Our thoughts are with his family, friends, colleagues and all who knew him.

“The family will provide further information in due course, and we ask that their privacy be respected during this difficult time,” the company continued.

Day was born in Colorado but raised in Chicago, before attending Harvard University and then moving back to this state in 1970. He got his start in the restaurant industr

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