Greeley’s annual Arts Picnic will celebrate 38 years of summertime fun Saturday, July 30, from 9:00am –5:00pm and Sunday, July 31 from 9:00am – 4:00pm. Considered one of Northern Colorado’s best arts, crafts & music festivals, the Arts Picnic draws more than 20,000 people to Greeley’s historic Lincoln Park (10th Avenue & 8th Street) each …