Home All TrailsSkenfrith to Merthyr Valleys Drive

Moderate

On-Road

🇬🇧 United Kingdom

Recorded Trail

This track was recorded on the ground by an actual expedition vehicle.

ID: GB-WLS-02

Skenfrith to Merthyr Valleys Drive

Added on 30 Sep 2026

Logged by @trailxon4 November 2013

Long Welsh drive from Skenfrith in Monmouthshire through the South Wales Valleys.

Trail Map

Initialising Map Engine...

Trail Profile

General Instructions

Narrow lanes in Monmouthshire.

Mission Logs138 waypoints

Distance	Direction & Instruction	Gradient	Gear Gearing suggestions are defensive and based on terrain profile. Always assess real-time conditions and the path ahead personally.
0.0 km	S Start Point	-1%	2H
1.6 km	S Terrain Change	7%	2H
3.2 km	NE Terrain Change	0%	2H
4.5 km	E Terrain Change	7%	2H
6.4 km	E Terrain Change	0%	2H

Note: Gear suggestions are based on terrain gradient and are for reference only.

Weather check

At Start

85m

Sampling Micro-Climate...

51.8671, -2.9087

Slide to preview conditions across the entire route • Point: 51.8671, -2.9087 @ 85m

Quick Stats

Distance

227.69 km

Type

On-Road Sector

Elevation Range

28m - 429m

Max Elevation

429 m

Max Gradient

45%

19.7%

Highlights

Skenfrith Castle
Brecon Beacons edge
South Wales Valleys

Field Radio Protocol

VHF-UHF Communication

Signal Verified

Emergency Simplex

146.520MHz

Team Coordination

446.006MHz

Scout Primary

146.400MHz

Propagation Telemetry

Ridge Line

92%

Gorge Floor

18%

Sector Relay: Sector Alpha Relay• 12-18 KM Range

Regulatory Compliance

VHF/UHF frequencies are for monitoring and emergency coordination only. Transmitting on these bands may require an Amateur Radio License or regional government permits. Check local telecommunications laws before operation.

Technical Analysis

Total Ascent

+1595 m

Total Descent

-1572 m

Ruggedness Index

Terrain Roughness Index

Vertical displacement per km. Typical range: 0 (Smooth) to 100+ (Extreme Mountain).

0 (Smooth)50 (Steep)100+ (Extreme)

13.9

Tortuosity Index

Route Curviness Index

Ratio of actual path to straight line. Typical range: 1.0 (Direct) to 3.0+ (Switchbacks).

1.0 (Direct)2.0 (Winding)3.0+ (Serpentine)

2.61

Gradient Distribution

Flat (0-3%)68%

Moderate (3-8%)24%

Steep (>8%)8%

Surface & Hydrology

Paved46%

Unpaved54%

Surface Spectrum Analysis

Asphalt

46%

Gravel

38%

Dirt Track

16%

Water Crossings

Includes only technical water fords where the vehicle actively enters a stream or riverbed. Permanent bridges are excluded from this count.

Difficulty Analysis

SCORE: 48

Difficulty is determined by a technical multi-vector analysis of elevation profile, surface quality, and topographic intensity.

Resulting CategoryModerate

Bounding Box (WGS84)

MIN LAT: 51.540273

MAX LAT: 51.945658

MIN LON: -3.496184

MAX LON: -2.806191

Point Spacing: 65.7 m • Engine: TrailX Precision GPX ANALYTICS v1.0.0

Reviews & Discussion0

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