Special Group Tours

By Appointment

March ~ November

(7 day advanced notice required)

Click Here to email us about Group Tours!

Special Group Tours are for groups of 5 or more, and made by advanced reservation.

Guided group tours include a walking tour of our historic manor house and plantation outbuildings, and can be customized to suit your group.

Be sure to visit our Mount Harmon Gift Shop ~

full of fun and unique gift items for all ages.

We also offer add-on options for special groups such as hearth cooking or spinning/weaving demonstrations, or hay wagon rides for an additional fee.

Chick Here to email us to inquire about special group tours and options. Include your preferred date and group size.



May 1 – October 31

Thursdays ~ Sundays 10am – 3pm

(During Guided Tour Season)

Otherwise By Appointment

For Special Group Tours

March ~ November

Tour Admission:

$10 adults, $8 students/seniors.

Members Free

Children under 5 Free

Tour visitors are welcome to enjoy

our beautiful grounds and nature trails after their tour,

and to bring picnic to enjoy at our scenic picnic areas.

Masks required inside buildings if not fully vaccinated.




Available Daily 9am ~ 5pm

Year Round!

Leave No Trace, Social Distancing & MD CDC Guidelines

Day Pass Admission: (guided tour not included)

$10 adults, $8 students/seniors.

Members free, children under 5 Free.


You will receive e-confirmation good for admission.

Pool House Facilities Open March – November

Pool House Facilities Closed December – February


Visitors can now enjoy Mount Harmon’s history and natural beauty in two fun new ways, purposely designed with social distancing and safety in mind for our visitors: Guided Walking Tours & Day Passes.

Our new Mount Harmon Day Pass (tour not included) is a wonderful option for nature and history lovers for enjoying our beautiful gardens, grounds, and 200-acre nature preserve with over 5 miles of nature trails, picnic areas, and canoe and kayak launch ~ great for hiking, picnicking, and exploring our scenic and historic site and waterfront.

Mount Harmon’s pandemic safe Guided Walking Tours are purposefully designed to be primarily outside and when inside, in our most historic, yet larger rooms, to facilitate social distancing. The Walking Tour features a scenic walking tour of historic Mount Harmon Plantation, with guided tours of our Carriage House Education & Discovery Center, Manor House (first floor), Boxwood Garden, and Plantation Outbuildings: colonial kitchen, smoke house, and replica slave quarters.

Many thanks for following our leave no trace and social distancing guidelines, and for respecting other visitors on site by social distancing. Masks required inside buildings, where social distancing is not possible.

We hope this gives you more reasons than ever to come out and enjoy Mount Harmon! So visit often, and bring friends and family to enjoy our new Mount Harmon Tours and Day Passes.

We look forward to seeing you at Mount Harmon!

Gardens, Grounds, Picnic Areas, & Nature Trails available after tour to enjoy.

Proceed down our 1.8 mile scenic lane. Follow signs to visitor parking and check in. We look forward to seeing you!

Planning Your Visit

Entrance RoadArriving by land: Mount Harmon’s scenic two-mile entrance lane has welcomed visitors by land for over two and a half centuries. The picturesque entrance lane transports visitors back in time to a bygone era and is lined with gracefully cascading Osage Orange trees. Proceed 1.8 miles to end of entrance lane. Follow signs for visitor parking.

Arriving by water: Come to Mount Harmon by boat, as colonial-era visitors to Mount Harmon did in the 18th century. Mount Harmon is proud to welcome registered visitors and members via our new dock, located to the right and up the shore from the Prize House.  The dock has a 30 ft T-head and floating dock.  Dock coordinates are 39.22.44 N.  75.56.17 W.  Head left from dock and follow arrows and mowed trail to manor house.  All visitors by boat must register at Visitor Center or have confirmed Day Pass or be FOMH Members.

We suggest you plan to allow at least one hour for the tour, and additional time to explore the gardens, grounds, nature trails, and waterfront. Registered visitors and members are welcome to bring a picnic to enjoy on our grounds and scenic picnic areas. Recommendations for area restaurants to visit before or after your tour by emailing

Points of Interest

Manor House

Mount Harmon is a brick Georgian manor house that dates to 1730 and is listed on the National Register of Historic Places. The manor house has been restored to the 1760 – 1810 period, and is furnished with American, English, Irish and Scottish antiques, to reflect Mount Harmon’s owners of that period who actively traded with the British Isles. The Chinese Chippendale staircase and elegant furnishings reflect the refinement of plantation culture in early America. Mount Harmon was restored to its colonial era appearance when it was a prosperous tobacco plantation, and was restored by Marguerite du Pont Boden, a direct descendent of the colonial owners. Mount Harmon was part of the colonial revival movement in the 20th century and part of the legacy of the du Pont family to preserve America’s architectural heritage.

Formal Boxwood Garden

The formal boxwood garden enclosed by serpentine brick walls is a Thomas Jefferson design and evokes Mount Harmon’s golden age. Between the boxwood garden and the manor house are a pair of magnificent English Yew trees (Taxus baccata, variety dovastonii). These 200-year-old yews are among the oldest in the United States. The boxwood garden is a popular site for weddings, and overlooks McGill Creek.

Plantation Kitchen

The plantation kitchen is an original building and recalls domestic life and work on a colonial American plantation. It stands apart from the manor house and was restored and furnished with authentic kitchen artifacts of the colonial era. The plantation or colonial kitchen features open hearth where meals were prepared for the plantation owners. Hearth cooking programs are featured here for special events and school field trips.

Smoke House

The smoke house was on Mount Harmon’s colonial inventory, though like many clapboard buildings did not stand the test of time, and was recreated as part of our expanded living history campus to bring to life the working plantation outbuildings, each with a unique purpose and history. Prior to electricity and refrigeration, smoke houses were fixtures on plantations and used to smoke, cure, and store meats.

Slave Quarters

The replica slave quarters depicts the simple and sparsely furnished dwellings that housed the enslaved and indentured laborers who lived and worked at Mount Harmon, to bring to life their stories and history that enabled Mount Harmon to prosper.

Tobacco Barn

The replica tobacco barn depicts the colonial barns used to cure and store the cash crop tobacco.  Tobacco was widely popularized during the colonial era and became so valuable it was used as currency, to pay taxes, and in global trade. The tall and steep roof pitch was purposely designed to maximize the amount of tobacco that could be cured, in turn increasing profits for the plantation owners.

Prize House

Prize HouseMount Harmon was a local center for tobacco shipment for the Sassafras area and official port in colonial times. It boasts the northernmost existing tobacco prize house. “Prize” refers to the huge wooden screw used to compress tobacco from two casks into one, to double capacity and profits.

Discovery CenterEducation & Discovery Center

Housed in the renovated plantation stables, the Education & Discovery Center features a Mount Harmon Highlights in History Exhibit, expanded educational programs, and is available for special and community events. Mount Harmon’s gift shop is located here and full of unique gift items for all ages.

Nature Trails

A network of more than 5 miles of nature trails, provides easy access to the plantation’s pristine natural surroundings – a historic Tidewater landscape, little changed by time for everything else odonate therapeutics. The trails allow visitors to explore the plantation’s scenic and historic waterfront, rare tobacco prize house, and diverse ecosystems full of wildlife.


Wildlife is abundant at Mount Harmon. The entire plantation is a nature preserve, and all forms of plants and animals on the property are protected. Visitors are requested not to pick the flowers or otherwise disturb plants and animals.

EagleRare and Endangered Species

Several rare and formerly endangered species live at Mount Harmon. A pair of American bald eagles nests in the vicinity and can be seen hunting over the plantation. The American Lotus (Nelumbo lutea), a relative of the water lily and the largest wildflower in the United States, is rare in Maryland and neighboring states but abundant at Mount Harmon with its peak flowering in August.