The Atlas Block, at 523 & 528 E. Pike Ave. in Columbus in Stillwater County, Montana, is a historic commercial block building which was listed on the National Register of Historic Places in 2011.
The building has housed the "New Atlas Bar" for more than a century. It was built in 1915–16.
There is another Atlas Block building in the Helena Historic District in Helena, Montana, which is also notable.
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