The 31st Annual Colorado Artfest is Saturday, September 12 from 9:00 a.m. until 6:00 p.m. and Sunday, September 13 from 10:00 a.m. until 5:00 p.m. in Downtown Castle Rock (Perry Street between 3rd/South and Festival Park). This juried, fine arts show features artists from across the country, main stage entertainment, interactive exhibits for children and fabulous food. Admission is free.