• Lone Tree Symphony Orchestra Presents American Spirit

    Lone Tree Arts Center 10075 Commons Street, Lone Tree, Colorado, United States

    Join us for American Spirit, a collaboration with the Spirituals Project, directed by Roger M. Holland. The choir will perform The Welcome Table, a moving spirituals mass that reflects America’s...

    $10 – $32
  • Community Garage Sale

    Join HRCA for our annual Community Garage Sale! Buyers: Check out the virtual map to discover your next stop on your shopping journey. Spend the day garage sale hopping through...

    Free
  • Spring Up the Creek

    Multiple Locations

    Join CLEAR for this annual area-wide effort to improve and enhance our local creeks by collecting and removing trash and debris along trails across Castle Rock. Volunteers will be provided...

    Free
  • Tequila and Tacos

    Southridge Recreation Center 4800 McArthur Ranch Rd, Highlands Ranch, Colorado, United States

    Sip and savor at Tequila & Tacos on May 2, 2026, from 3–6 PM! Enjoy a festive afternoon featuring bold tequila tastings, mouthwatering tacos, and a lively atmosphere perfect for...

    $45
  • Step Afrika!

    Lone Tree Arts Center 10075 Commons Street, Lone Tree, Colorado, United States

    Step Afrika!’s The Evolution Tour is an electrifying production that fuses groundbreaking step choreography with the vibrant soundscape of a live DJ. As the world’s leading authority on the art...

    $45 – $65
  • Basics of Birdwatching

    Philip and Jerry Miller Library 100 S. Wilcox St., Castle Rock, Colorado, United States

    Are you interested in learning about birds or developing your birdwatching skills? Join the Town’s Natural Resource Specialist for the following birdwatching basics program and guided birdwatching walks. The indoor...

    Free
  • Lone Tree State of the City

    Lone Tree Arts Center 10075 Commons Street, Lone Tree, Colorado, United States

    Join Mayor Marissa Harmon and the Lone Tree City Council for the 2026 State of the City! Hear about ongoing projects and initiatives, celebrate major milestones, and look forward into...

    Free
  • QPR Suicide Prevention Community Training

    Virtual

    Q.P.R. stands for Question, Persuade, Refer - three simple steps anyone can learn to help save a life from suicide. Join us for a free, two hour virtual training on how to...

    Free
  • Mother’s Day 5K

    Cresthill Middle School 9195 Cresthill Ln, Highlands Ranch, Colorado, United States

    Join the festivities at our HRCA Mother’s Day 5K at Cresthill Middle School in Highlands Ranch on Saturday, May 9, 2026, starting at 9:00 a.m.! Celebrate the moms in your...

    $20 – $65