River Hill Farm

River Hill Farm is a historic slave plantation located in Clarksville in Howard County, Maryland, United States. River Hill Farm resided on a land tract patented as "Four Brothers Portion". The house was built in the 18th century out of field stone with stucco covering. Outbuilding included a slave quarters. The 500 acre property was the home of Major Henry Owings of Owingsville.

In 1972, Rouse used the River Hill farm as a game preserve while other sections were being developed. Howard Research and Development placed the Game Manager lived in the historic house. In 1974 The property was proposed for use as a landfill, but Alpha Ridge Landfill was selected. The house was not preserved or submitted for the historic registry by the Rouse Company. It was demolished for the development of Pointers Run.