Good morning, Castle Rock.

The Rueter-Hess Reservoir, a drinking water source for Parker and nearby communities, is open for recreation from 8 a.m. to 6 p.m. Fridays to Mondays through October.

Local officials have expanded fishing rules to allow catch-and-keep of walleye, largemouth bass, and yellow perch—while approved watercraft may use electric trolling motors only for fishing.

Douglas County sheriff’s deputies took an 18-year-old suspect into custody after a fatal stabbing at an apartment complex on Sweet River Circle in Castle Pines occurred at 11:35 p.m. on July 20—witnesses reported more than one victim and preliminary findings show the suspect and victims are related.

Jazz in the Park

6:30-8 p.m. — Festival Park — Free entry — Enjoy a serene evening of cool jazz amidst the charm of Castle Rock.

Mortgage Reimagined: The Agents Edge

10 AM – 12 PM — COFF33 — Event duration: 2 hours — Level up your real estate game with insider tips and strategies from top agents.

Douglas County Fair & Rodeo

4-10:30 p.m. — Douglas County Fairgrounds and Event Center — Admission details not specified — Experience thrilling rodeos, live music, and delightful carnival rides.

Douglas County Fair Parade

9:30-11:30 a.m. — Riverwalk Castle Rock — Free entry — Celebrate a traditional Fair Parade with community spirit in downtown Castle Rock.

Festival Park Farmers Market

9 AM – 2 PM — Festival Park — Free entry — Enjoy locally sourced foods and artisanal goods from over 40 vendors while supporting local agriculture.

OneNote Training Course

4 PM — Old Town Hall Basement — Cost not specified — Learn to master OneNote for efficient note-taking and organization.

Junior Team Tennis PREP - Summer Level 4

3:00 – 4:30 PM — 5254 N Meadows Dr, Castle Rock, CO — Cost info not provided — A focused program for young tennis players aged 9-12 looking to enhance their skills.

First Fridays 5K Celebration

5:30-9 p.m. — Festival Park — Free participation for 5K — Enjoy a fun evening with live disco music, food trucks, and community activities.

Douglas County Fair & Rodeo

11:00 AM – 10:30 PM — Douglas County Fairgrounds and Event Center — Free entry — Experience thrilling rodeos, live music, and delicious treats at this fun-filled fair.

Festival Park Farmers Market

9 AM – 2 PM — Festival Park — Free entry — Explore fresh produce, local meats, and artisan products from nearly 40 vendors.