The Hopkinton Trails Committee and the Hopkinton Trails Club have created a monthly trail volunteer day on the first Saturday of each month from 9 a.m.-noon. The next workday is April 6, and it’s the annual Center Trail cleanup. Volunteers will clear debris from drainage ditches, and repair erosion damage on the trail. Parking is available on Claflin Place, across Main Street from Hopkinton Lumber. For more information, visit hopkintontrailsclub.com.