Vrroom-vrroom! That’s the sound of a tractor at work! Every third Monday of the month, come listen to stories, sing songs, and enjoy other activities. This month, come to Oxon Hill Farm and learn how a farmer’s tractor helps plow fields, harvest crops, remove snow, cut grass, and pull heavy loads. No Fee. Oxon Cove Park is only minutes away, just across the Wilson Bridge. Meet Ranger Steph in the Visitor Barn. For babies, toddlers, pre-schoolers, and the adults who love them. For more information, contact Ranger Steph at 301-839-1176 or stephanie_marrone@nps.gov.