Part of National Capital Parks-East · Maryland

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.

Photos: National Park Service · 12 in the NPS collection ↗

Fees & passes

Free. No entrance fee here.

Hours

Harmony Hall GroundsDaily · 6:00AM - 10:00PM
Limited data for this unit

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

Map

Interactive map by the National Park Service

Guidebooks for the Mid-Atlantic

We earn a small commission if you buy through these links. It does not change what we list.

  • Best Hikes of the Appalachian Trail
    Matt Willen, 2016
    Find at Bookshop.org
  • Rail-trails mid-Atlantic
    Rails-to-Trails Conservancy, 2015
    Find at Bookshop.org
  • Scenic Routes and Byways Middle Atlantic
    Randi Minetor and Nic Minetor, 2015
    Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject.

Reference

Wildlife

123
Bird species
3
Mammal species
8
Species seen this month

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 mammals
Birds

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

Mammals

Small mammalseastern gray squirrel

PredatorsFOX · River Otter

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.