Round Rock takes its name from a large limestone rock in Brushy Creek, a landmark that once marked a low water crossing for settlers and travelers. Today downtown Main Street mixes historic storefronts with restaurants, shops, and community events, and Old Settlers Park draws families for trails, sports, and outdoor gatherings. Dell Diamond, home of the Round Rock Express, brings summer baseball energy to the city, while Brushy Creek trails connect neighborhoods to green space and water.