Extraordinary Halcyon House! Over 30,000 square feet in this historically designated mansion overlooking the Potomac River. Sited on a dominant 1/2-acre hill. Once owned and expanded by Mark Twain's nephew. Masterful restoration-pristine condition. Most appropriate for either a single family or a qualified non-profit group. *REGISTRATION FORM REQUIRED
This property is not currently displayed as for sale or rent on Zillow. This may be different from what's on other websites or public sources.
