Mack is an unincorporated community and a U.S. Post Office located about 10 miles east of the Colorado/Utah border in Mesa County, Colorado, United States. The Mack Post Office has the ZIP Code 81525. Mack is part of the Grand Junction Metropolitan Statistical Area.
A post office called Mack has been in operation since 1904. The community was named after John W. Mack, a businessperson in the asphalt industry.
The Country Jam Ranch is located near the town of Mack and is known for being a Music Festival Destination. This is a permanent festival site created for music festivals, including Country Jam, an event that has been held since 1992 and one that draws thousands of country music fans to the area.
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