Severn Run Natural Environment Area
Managed by Maryland Park Service
27 acres
Dog rules not recorded
No trailhead mapped yet
COutdoors
Outdoors in Herald Harbor
Herald Harbor has 8 acres of parks, 3.1 for every 1,000 residents
0.1 miles of mapped trail cross Herald Harbor, 0.1 per square mile of land. 5% of Herald Harbor’s land is conserved, about 50 acres. 69% of residents live within a half mile of a park.
Ahead of 33% of U.S. towns. What drives it
Conserved land
5%
50 acres · of 1.7 sq mi of land
Trails
0.1 mi
0.1 per sq mi of land
Park land
8 ac
3.1 acres per 1,000 residents
Near a park
69%
of residents within ½ mile
Lakes & rivers
1
1 beach · 2 boat launches
Outdoors grade
How much outdoors does Herald Harbor have?
On conserved land, trails, park land and how close residents live to a park, Herald Harbor is ahead of 33% of U.S. towns. Conserved land holds the grade up; park acres per resident pull it down.
C
OutdoorsA character grade: shown, never part of Herald Harbor’s overall grade.
Conserved land5% of the land · typical MD town 9% · U.S. 4%BTrails0.1 miles of mapped trail per square mile of land (0 mi) · MD 0.5 · U.S. 0.4C−Park land3.1 acres of park per 1,000 residents (8 acres) · MD 9 · U.S. 13C−Parks close to home69% of residents within a half mile of a park · MD 87% · U.S. 72%B
All U.S. towns we grade (21,298)Ahead of 33%
LessMore
Maryland towns conserve more land than most (a typical one, 9%; the U.S., 4%), so Herald Harbor’s 5% is ahead of 24% of Maryland towns, while its trails per square mile lead 8% of them.
Water is 32% of Herald Harbor’s area (1 of 2 square miles), so every share here is of land; over land and water together, the conserved share would read 3%.
How sure. Graded on any three of the four inputs instead, the letter would range from C− to C+. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
Directions go to the nearest trailhead or public parking.
Who protects it
50 conserved acres
5% of Herald Harbor’s land. Water is left out: Herald Harbor has 1.7 square miles of land and 0.8 of water, so the share counts land only. Who manages Herald Harbor’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
State natural resources29 ac
County19 ac
Other or Unknown Local Government6 ac
Not recorded2 ac
State Conservation Area · 29 acForest Stewardship Easement · 10 acConservation Easement · 9 acLocal Park · 8 ac
Good to know
Conserved doesn’t always mean open to visitors. 14 acres are conservation easements, usually private land. Public access isn’t recorded for 6 of 16 parcels. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Severn Run Natural Environment Area State Conservation Area | State natural resources | 29 | Restricted |
| Herald Harbor Park Local Park | Not recorded | 8 | Unknown |
Things to do
5 places to go in Herald Harbor
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Beaches in Herald Harbor
Herald Harbor Beach 1
DirectionsPlaygrounds in Herald Harbor
2 playgrounds without a name on the map. Tap “Show all on map” to see them.
Boat launches in Herald Harbor
2 boat launches without a name on the map.
Trails & water
1 lakes & rivers
Lakes & rivers tap for directions
Biking & sports
0.0 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Courts & fields
2Tennis
2Pickleball
1Basketball
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Herald Harbor: April to June
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.7 | 10.7 | 11.8 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.1 | 10.0 | 9.4 |
| High (°F) | 44 | 47 | 55 | 67 | 75 | 84 | 89 | 86 | 80 | 69 | 57 | 48 |
| Rain (in) | 3.1 | 2.7 | 4.1 | 3.4 | 3.9 | 4.2 | 4.5 | 4.4 | 4.5 | 4.0 | 3.2 | 3.8 |
February is the driest month (2.7 in) and July the warmest (highs of 89 °F). 4.5 inches fall in September, the wettest month. Summer highs reach 89 °F, too hot for the outline. The climate in Herald Harbor →
Next door
Herald Harbor and its neighbors
Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Herald Harbor | 5% | 0.1 | 3 | 69% | C |
| Arden on the Severn | 19% | 3.4 | under 1 | 87% | A− |
| Crownsville | 11% | 1.7 | 37 | 13% | B+ |
| Severna Park | 5% | 0.6 | 15 | 74% | B+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Herald Harbor
Where can I hike in Herald Harbor?
The longest trail networks: Herald Harbor Park, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Herald Harbor is conserved land?
5% of its land, against a typical 9% for a Maryland town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Herald Harbor’s trails?
Severn Run Natural Environment Area and Herald Harbor Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Herald Harbor?
9,070 acres of parks and open public land lie inside Herald Harbor or within 10 miles of it (PAD-US), 8 of them inside the town line.
How much outdoors does Herald Harbor have?
Ahead of 33% of U.S. towns on the Outdoors grade. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from Herald Harbor neighbors.
Share a tip
Sources
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →