Mashing Covers Music Event in Hagerstown MD When June 10, 2023 5:00 pm - 8:00 pm Where Upper Stem Brewery 20150 Leitersburg Pike, Hagerstown, MD, 21742, WHMD Event Type Hagerstown MD. Map Unavailable Live Weekend Music Event in Washington County MD. Upper Stem Brewery in Hagerstown MD will be hosting a live performance by Mashing Covers. Be sure to try the local brewery and get something to eat from the food truck. ← Food By Fire Food Truck Event in Hagerstown MD Comedy Event in Williamsport MD →