Thru Trail, Lower Thru Trail and Blasphemy Climb
Thru Trail, Lower Thru Trail and Blasphemy Climb
2
hikers
02:16
8.47km
100m
Hiking
Embark on a moderate hiking adventure along the Thru Trail, Lower Thru Trail, and Blasphemy Climb, a route that spans 5.3 miles (8.5 km) with an elevation gain of 320 feet (98 metres). This trail offers a diverse experience through woodlands, leading you to scenic views of the Patapsco River,…
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
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461 m
Highlight • Rest Area
2.23 km
Highlight • River
Tip by
4.56 km
Beach
Beach
8.44 km
Highlight • Structure
Tip by
8.47 km
End point
Way Types & Surfaces
Way Types
7.96 km
505 m
Surfaces
8.03 km
407 m
< 100 m
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Elevation
Highest point (130 m)
Lowest point (70 m)
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Weather
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Today
Monday 25 May
24°C
15°C
63 %
Additional weather tips
Max wind speed: 7.0 km/h
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This route was planned by komoot.
The most convenient access point for this route is the New Woodstock Trailhead. Parking is available there, providing a good starting point for your hike.
Yes, as this route is located within Patapsco Valley State Park, standard park entrance fees apply. These can vary, so it's always a good idea to check the official Maryland State Parks website for the most current information on fees and any specific regulations before your visit.
This route is rated as 'moderate' overall. The 'Lower Thru Trail' section is considered intermediate/difficult but can be a good challenge for novice hikers. However, the 'Blasphemy Climb' section is rated 'Hard' and is primarily designed for advanced mountain biking, featuring steep and rugged terrain. Beginners should be prepared for challenging sections, especially on the Blasphemy Climb.
The terrain is quite varied. Expect typical Patapsco Valley State Park landscapes, including woodlands and river views. The Lower Thru Trail section is mostly dirt, with some rocky outcrops and moderate inclines. The Blasphemy Climb, however, is known for its steep, relentless climbs and can be rugged, with leaves potentially obscuring the path and occasional downed trees.
You'll enjoy diverse scenery, including beautiful wooded areas and scenic Views of Patapsco River. You'll also pass by a Former Bridge Site, adding a touch of historical interest to your hike.
Patapsco Valley State Park generally allows dogs on trails, provided they are kept on a leash. Always ensure your dog is under control and that you clean up after them to help keep the park enjoyable for everyone.
Spring and fall are generally the most popular times to hike in Patapsco Valley State Park, offering pleasant temperatures and beautiful foliage. Summer can be hot and humid, while winter can bring icy conditions, especially on steeper sections like Blasphemy Climb. Always check weather conditions before heading out.
Yes, this route utilizes sections of several other trails within the park. You'll find yourself on parts of the Patapsco Traverse (north hiking), Patapsco Traverse (north mtb), Patapsco Howard County Thru Trail, Patapsco Alt HoCo Thru Trail, and Patapsco Traverse (south hiking).
This specific route, 'Thru Trail, Lower Thru Trail and Blasphemy Climb,' is designed as a loop, bringing you back to your starting point.
The 'Thru Trail' often refers to the interconnected system of trails within Patapsco Valley State Park. The 'Lower Thru Trail' is a specific, named section within this system, known for being about 2.6 miles long with an intermediate/difficult rating, offering a good challenge for hikers. The broader 'Thru Trail' system encompasses various sections with differing difficulties.
The 'Blasphemy Climb' is a particularly challenging part of this route. It's primarily known as a 'Black Diamond' mountain biking trail, meaning it features steep, relentless climbs and potentially rugged, obstacle-filled terrain. Hikers should be prepared for a strenuous ascent and careful footing, especially when leaves cover the trail.