free

• Castle Rock Day at Reuter Hess Reservoir

• Strive to Thrive Resource Fair

• Downtown Castle Rock Sip and Stroll

• Prairie Bounty Farm Fair

• Summer Splash Water Day

• Stars and Stripes Celebration

• Cops & Rockers Summer Concert Tailgate

• Douglas County Open Space Fall Festival

• Highlands Ranch Fireworks

• Rueter-Hess Day for Castle Pines