Start
OSM map layer · LineString
39.30, -76.82 · rel 12507946
39.30, -76.82 · rel 12507946
Patapsco Howard County Thru Trail
49,9 km from start to finish through urban area.
Maryland · 39.30°N ·
76.82°W
49,9km
Distance
multi-day
Climb · estimate
moderate
Difficulty · estimate
linear
Shape
23
views
11
Viewpoints
01 · Character of the route
Is this one for you?
Urban Area
Cave
11× viewpoint
Castle or ruins
Remote
Uncrowded
compiled from map data (OSM) and points of interest along the route — no editorial layer
02 · 20 points along the route
What will you encounter?
3× monument
4× ruins
11× viewpoint
1× cave
1× Attraction
Captain John Smith Marker
monument ·
on the route
49,9 km
100%
Ellicotts Upper Mills
monument ·
on the route
49,9 km
100%
St. Mary's College, former
ruins ·
on the route
49,9 km
100%
Former Altar
viewpoint ·
on the route
49,9 km
100%
St. Mary's Overlook
viewpoint ·
on the route
49,9 km
100%
Cemetery Altar
viewpoint ·
on the route
49,9 km
100%
Cemetery Overlook
viewpoint ·
36 m off route
49,9 km
100%
Grotto Overlook
viewpoint ·
40 m off route
49,9 km
100%
Camel's Den
cave ·
41 m off route
49,9 km
100%
Patapsco River Bridge #3109
viewpoint ·
52 m off route
49,9 km
100%
Valley Overlook
viewpoint ·
53 m off route
49,9 km
100%
Foundation
ruins ·
57 m off route
49,9 km
100%
Shrine Overlook
viewpoint ·
68 m off route
49,9 km
100%
St. Mary's Main Steps
ruins ·
79 m off route
49,9 km
100%
Main Street Ballroom
Attraction ·
95 m off route
49,9 km
100%
Foundation
ruins ·
102 m off route
49,9 km
100%
Putney's Bridge
viewpoint ·
105 m off route
49,9 km
100%
Avalon Dam
viewpoint ·
118 m off route
49,9 km
100%
Ellicott's Mills
monument ·
147 m off route
49,9 km
100%
McKeldin Falls
viewpoint ·
150 m off route
49,9 km
100%
03 · Landmarks
Steady waypoints
Quarter of the way
Halfway
Three quarters
Finish
04 · Intersecting routes
Where you meet other trails
05 · From the trail
Through the eyes of hikers
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06 ·
no reports yet
What hikers experienced
Log completion · Start your adventure
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07 · Before you go
Answers to common questions
Patapsco Howard County Thru Trail is 49.9 km long.
At an average walking pace, Patapsco Howard County Thru Trail takes approximately 12h 25min to complete.
No, Patapsco Howard County Thru Trail is a linear (point-to-point) trail. Plan ahead for return transport.
Patapsco Howard County Thru Trail starts near coordinates 39.3571, -76.9578.
Patapsco Howard County Thru Trail is a strenuous hike requiring excellent fitness and prior hiking experience.
Patapsco Howard County Thru Trail is maintained and managed by Friends of Patapsco Valley State Park.