3D Printing 101: An Intro to 3D Printing
6:30 pm – 8 pm · Douglas County Libraries - Castle Rock (Philip S. Miller)
Family
· 5:30 pm – 7:30 pm · Downtown Castle Rock
Checked October 31, 2026 against downtowncastlerock.com. Times can change; the organizer’s page is the record. Report a correction · Know something opening or closing? Tell us
The Downtown Alliance’s free trolley loops past the holiday lights every Monday and Tuesday evening of the season. It runs a figure-eight from the Encore garage entrance on South Street, up Wilcox Street to a stop at Third Street, then along Perry Street to the school district’s lot on 6th Street; a full loop takes about 12 minutes, and every stop takes wheelchairs and strollers.
6:30 pm – 8 pm · Douglas County Libraries - Castle Rock (Philip S. Miller)
Market
9 am – 4 pm · Douglas County Fairgrounds & Events Center · Free