Lost Lake – Patapsco Valley State Park loop from Ellicott City
Lost Lake – Patapsco Valley State Park loop from Ellicott City
3.1
(2)
90
riders
Lost Lake – Patapsco Valley State Park loop from Ellicott City
02:51
46.6km
370m
Cycling
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.
Last updated: May 9, 2026
Tips
Includes a segment that goes up or down a series of steps
You may need to carry your bike.
After 41 m for 8 m
Waypoints
Start point
Parking
Get Directions
2.54 km
Benjamin Banneker Historical Park and Museum
Highlight • Historical Site
Tip by
20.0 km
Patapsco Valley State Park Deep Run Area
Highlight • River
Tip by
38.7 km
Lost Lake
Highlight • Lake
Tip by
42.3 km
Viewpoint
Viewpoint
42.8 km
Swinging Bridge on Grist Mill Trail
Highlight • Bridge
It is best …
Tip by
42.9 km
Tip by
44.0 km
Patapsco Valley State Park
Highlight • Forest
It's a great …
Tip by
46.6 km
End point
Parking
Way Types & Surfaces
Way Types
23.4 km
8.90 km
5.93 km
5.48 km
2.59 km
307 m
Surfaces
35.7 km
8.92 km
1.64 km
343 m
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Elevation
Highest point (150 m)
Lowest point (10 m)
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Weather
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Today
Monday 13 July
29°C
17°C
0 %
Additional weather tips
Max wind speed: 13.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Description
If you're looking for a touring cycling route that blends natural beauty with historical intrigue, the Lost Lake – Patapsco Valley State Park loop from Ellicott City is a solid choice. This moderate 28.9-mile (46.6 km) ride features 1230 feet (375 metres) of elevation gain, taking approximately 2 hours and 51 minutes to complete. It's ideal for cyclists with good fitness who appreciate varied terrain and scenic river views.
What to expect on Lost Lake – Patapsco Valley State Park loop from Ellicott City
The route takes you through the diverse landscape of Patapsco Valley State Park, offering a journey through dense woodlands, rolling hills, and river valleys. You'll encounter a mix of surfaces, from paved sections to unpaved, rocky, and rooted segments that might require you to push your bike. Keep an eye out for the tranquil Lost Lake, known for its birdlife, and the heavily wooded Grist Mill Trail running alongside the Patapsco River. Along the way, you can spot historical landmarks like the Swinging Bridge and remnants of the B&O Railroad, adding a layer of history to your ride. This route is best for cyclists who enjoy a challenge and are ready for varied conditions.
Planning your visit
Patapsco Valley State Park is Maryland's oldest state park, offering extensive trails. While the park is generally accessible, be aware that some challenging routes within the park can involve significant elevation gains and difficult segments. Parking is available, but it's always wise to arrive early, especially on weekends, to secure a spot. The park is known for its scenic beauty year-round, but spring and fall offer pleasant temperatures for cycling.
Trail details
- Distance: 28.9 miles (46.6 km)
- Elevation gain: 1230 feet (375 metres)
- Difficulty: moderate
- Estimated time: 2 hours and 51 minutes
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