• Summer Concert Series at Acacia Park Thu, Oct 22nd, 2026 Colorado Springs
• STOR Committee Meeting Thu, Oct 22nd, 2026 Gunnison
• Buffs to Business Wed, Oct 21st, 2026 Boulder
• Ghosts of Boulder Bike Tour Wed, Oct 21st, 2026 Boulder
• Sewing 101: Lavender Eye Pillow Wed, Oct 21st, 2026 CO
• Council Tree Baby Storytime Wed, Oct 21st, 2026 CO
• Harmony All Ages Storytime Wed, Oct 21st, 2026 CO
• Gunnison Basin Sage-Grouse Meeting Wed, Oct 21st, 2026 Gunnison
• Old Town Outdoor All Ages Storytime Wed, Oct 21st, 2026 CO
• Teen Writers Tue, Oct 20th, 2026 CO
• Screening of The First Tue, Oct 20th, 2026 Boulder
• Friends of the Library Board Meeting Tue, Oct 20th, 2026 CO
• Council Tree Meeting Room Open Hours Tue, Oct 20th, 2026 CO
• Sort it out! Reduce, Reuse, and Recycle in Tue, Oct 20th, 2026 CO
• Physics and Quantum Career Fair Tue, Oct 20th, 2026 Boulder
• Harmony Bilingual Storytime Tue, Oct 20th, 2026 CO
• Old Town Outdoor Baby Storytime Tue, Oct 20th, 2026 CO
• Council Tree Toddler Storytime Tue, Oct 20th, 2026 CO
• Council Tree Ages 4+ Storytime Tue, Oct 20th, 2026 CO
• County Commissioners Meeting Tue, Oct 20th, 2026 Georgetown
• Hayden Everett & Kate Stephenson Mon, Oct 19th, 2026 CO
• Slow Pulp (16 and Over) Mon, Oct 19th, 2026 CO
• Ethereal Moon Mon, Oct 19th, 2026 CO
• Isabel LaRosa: Dollparts Tour Mon, Oct 19th, 2026 CO
• Paige Fish Mon, Oct 19th, 2026 CO
• Club Level Seating: Phoebe Bridgers Mon, Oct 19th, 2026 CO
• Phoebe Bridgers: The Lost Tour Mon, Oct 19th, 2026 CO
• Zac Brown Band Mon, Oct 19th, 2026 CO
• Wil Swindler’s Elevenet Mon, Oct 19th, 2026 CO
• Gold Crown Field House Meeting Mon, Oct 19th, 2026 Castle Rock
• Town Hall Meeting Mon, Oct 19th, 2026 Colorado Springs
• Council Tree Meeting Room Open Hours Mon, Oct 19th, 2026 CO
• Advance Care Planning with UCHealth Mon, Oct 19th, 2026 CO
• Outreach Fort Collins Mon, Oct 19th, 2026 CO
• Harmony Baby Storytime Mon, Oct 19th, 2026 CO
• Council Tree Ages 4+ Storytime Mon, Oct 19th, 2026 CO
• Council Tree Toddler Storytime Mon, Oct 19th, 2026 CO
• The Wildwoods Sun, Oct 18th, 2026 CO
• The Milk Carton Kids (16 and Over) – Sunday Sun, Oct 18th, 2026 CO
• Mariachi El Bronx Sun, Oct 18th, 2026 CO
• Sammy Rae & The Friends Sun, Oct 18th, 2026 CO
• Sueco Sun, Oct 18th, 2026 CO
• Men's Club Soccer - Black vs Colorado State Sun, Oct 18th, 2026 Boulder
• Men's Club Soccer - Black vs White Sun, Oct 18th, 2026 Boulder
• Council Tree Meeting Room Open Hours Sun, Oct 18th, 2026 CO
• Men's Rugby Club vs Wyoming Sun, Oct 18th, 2026 Boulder
• Fall Festival Sun, Oct 18th, 2026 300 Second St. Castle Rock
• Evie @FC Open Streets Sun, Oct 18th, 2026 CO
• Women's Rugby Club vs Mines Sun, Oct 18th, 2026 Boulder
• Sueco Sat, Oct 17th, 2026 CO
• The Milk Carton Kids (16 and Over) Sat, Oct 17th, 2026 CO
• TRUTH (18 and Over) Sat, Oct 17th, 2026 CO
• Fruit Bats Sat, Oct 17th, 2026 CO
• Old Town Library's 50th Birthday Sat, Oct 17th, 2026 CO
• Ghostly Stories & Tragic Tales of Castle Sat, Oct 17th, 2026 Castle Rock
• Spooktacular Sat, Oct 17th, 2026 Castle Rock
• Fountain Harvest Games Sat, Oct 17th, 2026 Fountain
• Fall changes in mountain communities - MRS Sat, Oct 17th, 2026 Nederland
• Council Tree All Ages Storytime Sat, Oct 17th, 2026 CO
• Jackalope Indie Artisan Fair Sat, Oct 17th, 2026 Arvada
• Zoologist for a Day for 5th-8th grade Sat, Oct 17th, 2026 CO
• Afrojack Fri, Oct 16th, 2026 CO
• Ott. (16 and Over) Fri, Oct 16th, 2026 CO
• Sortof Vague with RamonPang Fri, Oct 16th, 2026 CO
• Godfrey Fri, Oct 16th, 2026 CO
• FEDERAL VALUES Fri, Oct 16th, 2026 CO
• Colorado Avalanche vs. Pittsburgh Penguins Fri, Oct 16th, 2026 CO
• Nikki Glaser: The Stunning Tour Fri, Oct 16th, 2026 CO
• Free Throw & Microwave Fri, Oct 16th, 2026 CO
• Paramount Theatre Club Seating – Nikki Fri, Oct 16th, 2026 CO
• Ladies Night & Noche Sonidera Fri, Oct 16th, 2026 CO
• Sons of Paradise Fri, Oct 16th, 2026 CO
• The Army, The Navy Fri, Oct 16th, 2026 CO
• Matt Skellenger Group Plays the Music of Fri, Oct 16th, 2026 CO
• Bound by Books: Tween/Adult Pair Book Club Fri, Oct 16th, 2026 CO
• LEGO Club Fri, Oct 16th, 2026 Westminster
• Larimer County Community Justice Fri, Oct 16th, 2026 CO
• Halloween Movie & Costume Workshop Fri, Oct 16th, 2026 CO
• Let's Build with LEGO®! Fri, Oct 16th, 2026 CO
• Old Town Outdoor Mindful Movement Storytime Fri, Oct 16th, 2026 CO
• Anthropology Writing Sprint Fri, Oct 16th, 2026 Boulder
• University of Michigan at Denver Hockey Fri, Oct 16th, 2026 Denver
• SLEEP CLUB Thu, Oct 15th, 2026 CO
• Watsky x Infinity Thu, Oct 15th, 2026 CO
• Switchfoot w/ Anberlin Thu, Oct 15th, 2026 CO
• Punch Brothers Thu, Oct 15th, 2026 CO
• DJ Shadow – Ages 16+ Thu, Oct 15th, 2026 CO
• $5 Thursdays! Thu, Oct 15th, 2026 CO
• Abhoria Thu, Oct 15th, 2026 CO
• BLiNKR & Charlie Wonder with Mako, Viaza Thu, Oct 15th, 2026 CO
• Ballerine Thu, Oct 15th, 2026 CO
• Club Level Seating: Disney Descendants Thu, Oct 15th, 2026 CO
• Disney Descendants Zombies & Camp Rock Thu, Oct 15th, 2026 CO
• Hokus Pokus Live! Thu, Oct 15th, 2026 CO
• Charles Wesley Godwin Thu, Oct 15th, 2026 CO
• Artist Stories: Clint Burkholder Thu, Oct 15th, 2026 CO
• Glow at the Gardens Thu, Oct 15th, 2026 CO
• BYOBook Club Thu, Oct 15th, 2026 CO
• Faculty at the Edges Thu, Oct 15th, 2026 Boulder
• Greenhouse Gases Up Close Thu, Oct 15th, 2026 Boulder
• TAC212 Book Club Thu, Oct 15th, 2026 CO
• Council Tree Meeting Room Open Hours Thu, Oct 15th, 2026 CO
• Bling Your Backpack Thu, Oct 15th, 2026 CO
• One-on-One Genealogical Assistance Thu, Oct 15th, 2026 CO
• Harnessing the Power of GPU-Accelerated Thu, Oct 15th, 2026 University of Colorado Boulder
• Old Town Outdoor Bilingual Storytime Thu, Oct 15th, 2026 CO
• Big Ideas: What’s Next Thu, Oct 15th, 2026 Boulder
• Advancing Public Impact Research Thu, Oct 15th, 2026 Boulder
• VWILLZ Wed, Oct 14th, 2026 CO
• Kishi Bashi Wed, Oct 14th, 2026 CO
• The Green with Johnny Suite (16 and Over) Wed, Oct 14th, 2026 CO
• Ella Boh Wed, Oct 14th, 2026 CO
• zzzahara Wed, Oct 14th, 2026 CO
• Paramount Theatre Club Seating – Punch Wed, Oct 14th, 2026 CO
• Telescreens Wed, Oct 14th, 2026 CO
• Tempesst with Garden District Wed, Oct 14th, 2026 CO
• Ghostly Stories & Tragic Tales of Castle Wed, Oct 14th, 2026 Castle Rock
• Taking Back Sunday Wed, Oct 14th, 2026 CO
• How to Follow the News and Stay Sane Wed, Oct 14th, 2026 CO
• Attorney General Candidate Debate Wed, Oct 14th, 2026 Josef Korbel School of Global and Public Affairs at The University of Denver
• Grant Place Neighborhood Meeting Wed, Oct 14th, 2026 Boulder
• BYOD - Bring Your Own Device Drop in Tech Wed, Oct 14th, 2026 CO
• Snack and Craft Wed, Oct 14th, 2026 CO
• Council Tree Meeting Room Open Hours Wed, Oct 14th, 2026 CO
• Old Town Outdoor All Ages Storytime Wed, Oct 14th, 2026 CO
• Harmony All Ages Storytime Wed, Oct 14th, 2026 CO
• Council Tree Baby Storytime Wed, Oct 14th, 2026 CO
• Sustainability on Tap Wed, Oct 14th, 2026 Boulder
• Justin Nozuka Tue, Oct 13th, 2026 CO
• Paramount Theatre Club Seating: Gary Clark Tue, Oct 13th, 2026 CO
• Club Level Seating: Kacey Musgraves Tue, Oct 13th, 2026 CO
• In Her Own Words X Every Avenue – Tue, Oct 13th, 2026 CO
• Sawyer Hill Tue, Oct 13th, 2026 CO
• Kacey Musgraves – Middle of Nowhere Tour Tue, Oct 13th, 2026 CO
• Council Tree Meeting Room Open Hours Tue, Oct 13th, 2026 CO
• Poudre Libraries at TAC212: Tarot Tue, Oct 13th, 2026 CO
• Tai Chi Chih Tue, Oct 13th, 2026 CO
• Kevin Cook: Colorado Creatures Tue, Oct 13th, 2026 CO
• Council Tree Ages 4+ Storytime Tue, Oct 13th, 2026 CO
• Harmony Bilingual Storytime Tue, Oct 13th, 2026 CO
• Council Tree Toddler Storytime Tue, Oct 13th, 2026 CO
• Old Town Outdoor Baby Storytime Tue, Oct 13th, 2026 CO
• Saliva & Drowning Pool Mon, Oct 12th, 2026 CO
• Scott Hirsch Mon, Oct 12th, 2026 CO
• Bebe Stockwell Mon, Oct 12th, 2026 CO
• Castle Rat (16 and Over) Mon, Oct 12th, 2026 CO
• Rise Against Mon, Oct 12th, 2026 CO
• Lil Pete: Real Is Back Tour Mon, Oct 12th, 2026 CO
• Board of Trustees Meeting Mon, Oct 12th, 2026 CO
• Council Tree Meeting Room Open Hours Mon, Oct 12th, 2026 CO
• Peas and Thank You: Free Produce and Mon, Oct 12th, 2026 CO
• Outreach Fort Collins Mon, Oct 12th, 2026 CO
• Chair Yoga Mon, Oct 12th, 2026 CO
• Indigenous Peoples Day 2026 Mon, Oct 12th, 2026 Boulder
• Messy Me at Old Town Library Mon, Oct 12th, 2026 CO
• Harmony Baby Storytime Mon, Oct 12th, 2026 CO
• Council Tree Ages 4+ Storytime Mon, Oct 12th, 2026 CO
• Council Tree Toddler Storytime Mon, Oct 12th, 2026 CO
• The Red Jumpsuit Apparatus Sun, Oct 11th, 2026 CO
• Hovvdy Sun, Oct 11th, 2026 CO
• Michelle Branch Sun, Oct 11th, 2026 CO
• Surprise Soup Sun, Oct 11th, 2026 CO
• Animal Afternoon Sun, Oct 11th, 2026 CO
• Men's Club Soccer - White vs CSU - Gold Sun, Oct 11th, 2026 Boulder
• Rumors: By Neil Simon Sun, Oct 11th, 2026 Boulder
• Women's Rugby Club vs CSU B Sun, Oct 11th, 2026 Boulder
• The Great Halloween Kids' Costume Swap Sun, Oct 11th, 2026 CO
• U.S. Senate candidate debate Sun, Oct 11th, 2026 Colorado State University
• Men's Club Soccer - Black vs Colorado Mesa Sun, Oct 11th, 2026 Boulder
• Council Tree Meeting Room Open Hours Sun, Oct 11th, 2026 CO
• Women's Rugby Club vs CSU A Sun, Oct 11th, 2026 Boulder
• Festival Park Farmers Market Sun, Oct 11th, 2026 Castle Rock
• Teen Council Leadership Group Sun, Oct 11th, 2026 CO
• Jalan Crossland & Matthew Wilburn Skinner Sat, Oct 10th, 2026 CO
• Pink Fuzz w/ The Well Sat, Oct 10th, 2026 CO
• Aaron Lee Tasjan Sat, Oct 10th, 2026 CO
• Hotel Allan: The 10th Anniversary Tour Sat, Oct 10th, 2026 CO
• The Great American Pizza & Beer Festival Sat, Oct 10th, 2026 Denver
• jigitz (16 and Over) Sat, Oct 10th, 2026 CO
• Snarky Puppy (16+ Event) Sat, Oct 10th, 2026 CO
• Octave Cat Sat, Oct 10th, 2026 CO
• 49 Winchester Sat, Oct 10th, 2026 CO
• Elevation (Director's Cut) Sat, Oct 10th, 2026 Boulder
• Glow Dance Party Sat, Oct 10th, 2026 1375 W. Plum Creek Parkway Castle Rock
• Sabados Sabrosos! Sat, Oct 10th, 2026 CO
• Colorado Springs Switchbacks vs Oakland Sat, Oct 10th, 2026 Colorado Springs
• Paramount Theatre Club Seating Sat, Oct 10th, 2026 CO
• Amélie Farren, Lilith Max, Rabbitology Sat, Oct 10th, 2026 CO
• Sleeping With Sirens Tour Sat, Oct 10th, 2026 CO
• Denver Pioneers vs. USA Hockey NTDP Sat, Oct 10th, 2026 CO
• Council Tree Meeting Room Open Hours Sat, Oct 10th, 2026 CO
• Print That Thing! 3D Printing Sat, Oct 10th, 2026 CO
• Crafternoon Tea Sat, Oct 10th, 2026 CO
• Blue Book Festival Sat, Oct 10th, 2026 CO
• Evie @FC Wildcraft Farmers' Market Sat, Oct 10th, 2026 CO
• Great American Beer Festival Sat, Oct 10th, 2026 Denver
• Homeward Alliance Resource Navigation Sat, Oct 10th, 2026 CO
• Council Tree All Ages Storytime Sat, Oct 10th, 2026 CO
• Great Pumpkin Weekend Sat, Oct 10th, 2026 Colorado Springs
• Front Range Makers Market Sat, Oct 10th, 2026 Woodmoor
• Hypnagogia Fri, Oct 9th, 2026 United States
• Costume Exchange Fri, Oct 9th, 2026 Colorado Springs
• Council Tree Meeting Room Open Hours Fri, Oct 9th, 2026 CO
• Larimer County Community Justice Fri, Oct 9th, 2026 CO
• Your Health, Your Coverage Fri, Oct 9th, 2026 CO
• Outreach Fort Collins Fri, Oct 9th, 2026 CO
• Evie @Project Homeless Connect Fri, Oct 9th, 2026 CO
• Old Town Outdoor Mindful Movement Storytime Fri, Oct 9th, 2026 CO
• Research in Mechanical Engineering Fri, Oct 9th, 2026 Boulder
• Denver Botanic Gardens’ Pumpkin Festival Fri, Oct 9th, 2026 Littleton
• LGBTQ+ Visibility Project Fri, Oct 9th, 2026 Boulder
• Dan Codiga Thu, Oct 8th, 2026 CO
• Madeon (16 and Over) Thu, Oct 8th, 2026 CO
• Carbon Leaf Thu, Oct 8th, 2026 CO
• Iron and Wine (16 and Over) Thu, Oct 8th, 2026 CO
• $5 Thursdays! Thu, Oct 8th, 2026 CO
• Garden Brothers Circus Thu, Oct 8th, 2026 CO
• Paramount Theatre Club Seating Thu, Oct 8th, 2026 CO
• Ghostly Stories of Castle Rock Thu, Oct 8th, 2026 420 Elbert St. Castle Rock
• Castle Rock Mining & Milling Company Thu, Oct 8th, 2026 Castle Rock
• The Colorado Sun hosts Phil Weiser Thu, Oct 8th, 2026 Denver
• Planning Commission Meeting Thu, Oct 8th, 2026 Town of Castle Rock - Town Hall
• Writing the Whodunit Thu, Oct 8th, 2026 CO
• ICURUS: The Aftermath Screening & Q&A Thu, Oct 8th, 2026 Denver
• NoCo Nautilus Youth Group Thu, Oct 8th, 2026 CO
• Water Resources Master Plan open house Thu, Oct 8th, 2026 Castle Rock
• Evie @Hickory Village Mobile Home Community Thu, Oct 8th, 2026 CO
• Council Tree Meeting Room Open Hours Thu, Oct 8th, 2026 CO
• One-on-One Genealogical Assistance Thu, Oct 8th, 2026 CO
• Tech Buddies (time slot 3 of 3) Thu, Oct 8th, 2026 CO
• Messy Me at Harmony Thu, Oct 8th, 2026 CO
• Tech Buddies (time slot 1 of 3) Thu, Oct 8th, 2026 CO
• DIY Stories and Songs Thu, Oct 8th, 2026 CO
• Campus Architecture Tour Thu, Oct 8th, 2026 Boulder
• CU Boulder Sustainability Research Summit Thu, Oct 8th, 2026 Boulder
• ChBE Research Symposium Thu, Oct 8th, 2026 Boulder
• Doja Cat Live at Ball Arena Thu, Oct 8th, 2026 Denver
• Ghostly Stories & Tragic Tales of Castle Wed, Oct 7th, 2026 420 Elbert St. Castle Rock
• Paper People: Make your own Button Pins! Wed, Oct 7th, 2026 CO
• FoCo Reading Club: Banned Books Night Wed, Oct 7th, 2026 CO
• Vail Resorts Summer Season Opening Dates Wed, Oct 7th, 2026 Vail
• Virtual Reality Showcase - Spooky Edition Wed, Oct 7th, 2026 CO
• Historic Preservation Board Meeting Wed, Oct 7th, 2026 Castle Rock
• Kwik Cricket Wed, Oct 7th, 2026 Boulder
• Snack and Craft Wed, Oct 7th, 2026 CO
• Council Tree Meeting Room Open Hours Wed, Oct 7th, 2026 CO
• Outreach Fort Collins Wed, Oct 7th, 2026 CO
• Cafecito y Chisme Wed, Oct 7th, 2026 Boulder
• Harmony All Ages Storytime Wed, Oct 7th, 2026 CO
• Old Town Outdoor All Ages Storytime Wed, Oct 7th, 2026 CO
• Council Tree Baby Storytime Wed, Oct 7th, 2026 CO
• DIY Nights: Guided Painting Class Tue, Oct 6th, 2026 Boulder
• Reading Rainbow: LGBTQ+ Book Club Tue, Oct 6th, 2026 CO
• Castle Rock Urban Renewal Authority Meeting Tue, Oct 6th, 2026 Castle Rock
• Festival Park Commons Board Meeting Tue, Oct 6th, 2026 Castle Rock
• Teen Council: Programming Committee Tue, Oct 6th, 2026 CO
• Negro Leagues art exhibit Tue, Oct 6th, 2026
• Evie @Neighbor to Neighbor Tue, Oct 6th, 2026 CO
• Council Tree Meeting Room Open Hours Tue, Oct 6th, 2026 CO
• Council Tree Ages 4+ Storytime Tue, Oct 6th, 2026 CO
• Old Town Outdoor Baby Storytime Tue, Oct 6th, 2026 CO
• Harmony Bilingual Storytime Tue, Oct 6th, 2026 CO
• Council Tree Toddler Storytime Tue, Oct 6th, 2026 CO
• County Commissioners Meeting Tue, Oct 6th, 2026 Georgetown
• Flu Shots: Faculty/Staff Tue, Oct 6th, 2026 Boulder
• Ella Langley Concert at The Grizzly Rose Tue, Oct 6th, 2026 Denver
• Old Town Book Club Mon, Oct 5th, 2026 CO
• Council Tree Meeting Room Open Hours Mon, Oct 5th, 2026 CO
• Outreach Fort Collins Mon, Oct 5th, 2026 CO
• Council Tree Toddler Storytime Mon, Oct 5th, 2026 CO
• Council Tree Ages 4+ Storytime Mon, Oct 5th, 2026 CO
• Grab a Complimentary Banned Book Mon, Oct 5th, 2026 Boulder
• Harmony Baby Storytime Mon, Oct 5th, 2026 CO
• Animal Afternoon Sun, Oct 4th, 2026 CO
• "Judy Blume Forever" Film Screening Sun, Oct 4th, 2026 CO
• Women's Club Lacrosse vs CSU Sun, Oct 4th, 2026 Boulder
• Peas and Thank You Sun, Oct 4th, 2026 CO
• CU Boulder Wind Symphony Sun, Oct 4th, 2026 Boulder
• Council Tree Meeting Room Open Hours Sun, Oct 4th, 2026 CO
• Clothing Swap Sun, Oct 4th, 2026 CO
• Charlie's Place Low-Cost Vaccine Clinic Sun, Oct 4th, 2026 Dumont
• Men's Club Soccer - Gold v. Denver Sun, Oct 4th, 2026 Boulder
• Beat the Funk Sat, Oct 3rd, 2026 Denver
• 2026 CU Engineering Homecoming Tailgate Sat, Oct 3rd, 2026 Boulder
• Alumni Homecoming Tailgate Sat, Oct 3rd, 2026 Boulder
• Student Game Day Huddle | Texas Tech Sat, Oct 3rd, 2026 Boulder
• TEDxBreckenridge Sat, Oct 3rd, 2026 Breckenridge
• Cider Days festival Sat, Oct 3rd, 2026 Lakewood
• Air Force vs. Navy football game Sat, Oct 3rd, 2026 Colorado Springs
• Denver Bake Fest Sat, Oct 3rd, 2026 Denver
• Castle Rock Trail Festival Sat, Oct 3rd, 2026 Castle Rock
• Air Force vs. Navy football game Sat, Oct 3rd, 2026 Colorado Springs
• Free Self-Defense Classes Sat, Oct 3rd, 2026 Colorado Springs
• Leeds Football Pregame Reception Sat, Oct 3rd, 2026 Boulder
• Caffeinated Mornings with Noah Clark Fri, Oct 2nd, 2026 Boulder
• Research in Mechanical Engineering Fri, Oct 2nd, 2026 Boulder
• Don Quixote Fri, Oct 2nd, 2026 Denver
• The G.O.A.T. State of the Town Thu, Oct 1st, 2026 Castle Rock
• Shine On Norlin Thu, Oct 1st, 2026 Boulder
• Letterpress Printing Drop-in Thu, Oct 1st, 2026 Boulder
• Salsa Dance Class with Ritmos Latinos Thu, Oct 1st, 2026 CU Boulder
• Hybrid Access Model Introduction - Ute Pass Branch Thu, Oct 1st, 2026 Colorado Springs
• Disney’s Beauty and the Beast Thu, Oct 1st, 2026 Denver
• Original Thinkers Festival Thu, Oct 1st, 2026
• Emma Crawford Coffin Races Thu, Oct 1st, 2026 Manitou Springs