31st Annual Four Mile Run Stream Cleanup Date/Time 03/09/201910:00 am-1:00 pm Ages: 8+, Family Friendly Cost: Free Contact Details firstname.lastname@example.org Add to Calendar Download iCalendar file Add to Google Calendar Arlington County Park Rangers are calling on volunteers to help clean Four Mile Run at Madison Manor, Glencarlyn, Barcroft and Shirlington Parks and by Arlington Mill Community Center. Volunteers should wear waterproof boots and bring gloves. Bags will be provided. View specific locations. View more details An adult must accompany volunteers under 18 years old.