Over the years, Donna and I have explored most of Maryland’s regions: The mountainous west and north, the beaches to the east, and the areas around the dominant Chesapeake Bay, which cleaves the state in the middle. But we had never ventured to southern Maryland, so we recently took a day trip to St. Mary’s County, at the southern tip of the state's western shore, to visit Goldpetal Farms there and experience this rural area rich in Maryland’s history. The farm is in the village of Chaptico, at the mouth of Chaptico Bay, near the confluence of the Wicomico and Potomac rivers. It’s about a 90-minute drive from our house in Columbia without traffic. After navigating frenetic I-95 and I-495 and passing Joint Base Andrews, we exited onto Maryland Rte. 5, AKA Branch Avenue. As we headed south, we encountered towns and roads we had only heard about on our local news radio’s traffic reports: Camp Springs, Clinton, Brandywine. Just before Waldorf, Branch Avenue becomes Rte. 301, or Crain ...