Harmony Hall
Harmony Hall is part of National Capital Parks-East, a unit of the National Park System. It is not counted as a unit of its own.
The 18th century Harmony Hall mansion is located on a 62.5-acre open pasture land estate along the Potomac River. This estate was purchased by the National Park Service in 1966, to preserve southern Maryland cultural heritage. Surrounded by a rich landscape, it offers visitors many chances to connect with Colonial History. The park also home to the remains of the Want Water House and canal.
About under an hour from Washington and 1 hours from Baltimore by car.
Fees & passes
Free. No entrance fee here.
Hours
| Harmony Hall Grounds | Daily · 6:00AM - 10:00PM |
No campgrounds, no webcams or events in Park Service data. What is here comes from the official page. The rest lives there.
Checked nightly. Modules appear as soon as the Park Service publishes the data.
Explore
Things to do
- Junior Ranger Programs at National Capital Parks - East30-90 Minutes
Become a Junior Ranger at parks across National Capital Parks – East! Explore, complete a booklet, and earn badges and certificates along the way!
Opens on the Park Service site - Collect all the National Capital Parks - East Passport Stamps5-10 Minutes
Start your stamp collection and celebrate every park you visit! Explore historic sites and scenic parks managed by National Capital Parks - East and collect a unique stamp at each one.
Opens on the Park Service site
Map
Interactive map by the National Park Service
Historic landmarks nearby
Public land nearby
Distances are approximate. Wilderness Atlas publishes a center point and an acreage for each area rather than a boundary, so each area is treated here as a circle of the same size and the figure is the gap to that circle.
Guidebooks for the Mid-Atlantic
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Titles come from Open Library's catalog, matched by subject.
Reference
Wildlife
Seen this monthBald Eagle 24× · Red Fox 16× · Greater Yellowlegs 8× · Osprey 8× · Belted Kingfisher 7× · Barred Owl 7× · Lesser Yellowlegs 5× · Peregrine Falcon 5×Research-grade observations within 25 km, last 30 days, via iNaturalist
Full checklist: 123 birds, 3 mammalsHide
Raptors & owlsHARRIER · Hawk · Osprey · bald eagle · barred owl · red-tailed hawk · sharp-shinned hawk · turkey vulture
Waterfowl & wadersDUCK · Duck · Great Egret · Northern Pintail · Swan · american black duck · american coot · american wigeon · blue-winged teal · bufflehead · canada goose · common merganser · double-crested cormorant · great blue heron · greater scaup · green-winged teal · hooded merganser · lesser scaup · red-breasted merganser · ring-necked duck
Shorebirds & seabirdsbonaparte's gull · caspian tern · forster's tern · great black-backed gull · greater yellowlegs · herring gull · killdeer · laughing gull · least sandpiper · ring-billed gull
Gamebirds & dovesmourning dove · rock dove
Woodpeckersdowny woodpecker · hairy woodpecker · northern flicker · pileated woodpecker · red-bellied woodpecker · yellow-bellied sapsucker
Hummingbirds & swiftschimney swift
Also on the checklistBluebird · Kinglet · MOCKINGBIRD · No common name · No common name · No common name · SPARROW · WARBLER · acadian flycatcher · american crow · american goldfinch · american redstart · american robin · barn swallow · belted kingfisher · black-and-white warbler · blackbird · blackpoll warbler · blue grosbeak · blue jay · blue-gray gnatcatcher · brown creeper · brown thrasher · brown-headed cowbird · canvasback · cardinal · carolina wren · cedar waxwing · chestnut-sided warbler · chipping sparrow · common grackle · common yellowthroat · dark-eyed junco · eastern kingbird · eastern phoebe · eastern wood-pewee · european starling · field sparrow · fish crow · golden-crowned kinglet · gray catbird · great crested flycatcher · hermit thrush · hooded warbler · house finch · house sparrow · house wren · indigo bunting · louisiana waterthrush · northern oriole · northern parula · northern rough-winged swallow · northern shoveler · orchard oriole · palm warbler · pine warbler · prothonotary warbler · purple finch · purple martin · red-breasted nuthatch · red-eyed vireo · redhead · rufous-sided towhee · rusty blackbird · scarlet tanager · song sparrow · swainson's thrush · tree swallow · white-breasted nuthatch · white-eyed vireo · white-throated sparrow · winter wren · wood thrush · yellow-billed cuckoo
Small mammalseastern gray squirrel
PredatorsFOX · River Otter
Activities
Activity guides for this park Birdwatching in the national parks · Wildlife watching in the national parks
Weather & climate
Summers are generally hot and humid, with daytime highs frequently above 90 degrees Fahrenheit and scattered afternoon thunderstorms. Winters are generally cold, with nighttime lows frequently near freezing and occasional snowfall. Weather during spring and fall is generally moderate, but can change quickly.
Questions people ask
Does Harmony Hall charge an entrance fee?
No. Harmony Hall is free to enter.
Source: National Park Service
What are the hours at Harmony Hall?
Standard hours are 6:00AM - 10:00PM, every day.
Source: National Park Service
Is there cell service at Harmony Hall?
At the park's reference point, FCC coverage maps show Verizon 5G, AT&T 5G, and T-Mobile 5G. Coverage inside the park varies by location.
Source: FCC Broadband Map
What is the weather like at Harmony Hall?
Summers are generally hot and humid, with daytime highs frequently above 90 degrees Fahrenheit and scattered afternoon thunderstorms. Winters are generally cold, with nighttime lows frequently near freezing and occasional snowfall.
Source: Weather & climate
Follow this park
- Alerts feed (RSS)
- Every active Park Service alert for this unit, one item each, rebuilt with the nightly data refresh.
- Add dates to your calendar (.ics file)
- Fee-free entrance days that apply here and each published hours exception, as all-day events.



