Tech Help drop in: 2:30 p.m., Carbon Valley Recreational Center, 151 Grant Ave., Frederick. Drop by with a smartphone, tablet, laptop or other technology, and volunteers will try to help people make sense of the digital world. 888-861-7323, facebook.com.

Short Film Night: 6 p.m., Erie Community Library, 400 Powers St., Erie. Watch three short movies — one documentary, one live action and one animated film each session. One of the films will be an Academy Award winner, one will be an Academy Award nominee and one will be neither. Free, highplains.libcal.com.

Lanyon Park historic walking tour: 10 a.m. Tuesday, Lanyon Park, 1900 Collyer St., Longmont. Learn about Longmont’s early years, the Oligarchy Ditch, mid-century modern architecture and the city’s expansion post-World War II in this f

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