In the heart of Howard County, a stately spread sits in long-tended isolation. There's a columned, brick mansion at the end of a tree-lined lane, red-roofed barns and a collection of buildings ...

Richland Farm, a 133-acre property between Clarksville and Glenelg in west-central Howard County, Md., has remained in the same extended family for 300 years. It is on the market for $4 million ...

Ringed by crowded residential developments in central Howard County, much of what remains of the nearly 300-year-old Doughoregan Manor property will stay ...