Our Lady of Calvary Retreat Center will host a season-opening celebration featuring Mariachi Mexico Antiguo on Sept. 8 from 2 to 4 p.m. at 31 Colton St., Farmington. Established in 2010, the group is known for its vibrant sound and focus on the antique traditions of the genre. Free-will offering. Register by calling 860-677-8519.http://www.ourladyofcalvary.net
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