HomeDestinationsFranceIle-de-FranceEssonne Long Ride
Hard
Cycling
🇫🇷 France
Recorded Trail

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

ID: FR-IDF-04

Essonne Long Ride

Added on 5 Oct 2026
Logged by @trailxon14 February 2018

108 km long ride from Les Ulis through the Essonne countryside south of Paris.

Trail Map

Initialising Map Engine...

Trail Profile

General Instructions

Long day; plan refreshment stops.

Weather check

At Start
-4m

Sampling Micro-Climate...

48.6890, 2.1738

Slide to preview conditions across the entire route • Point: 48.6890, 2.1738 @ -4m

Quick Stats

Distance
108.33 km
Type
Cycling Sector
Elevation Range
-101m - 13m
Max Elevation
13 m
Max Gradient
11.5%
17.1%

Highlights

  • Chevreuse Valley
  • Orsay

Field Radio Protocol

VHF-UHF Communication

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

+692 m

Total Descent

-691 m

Ruggedness Index

Terrain Roughness Index

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

0 (Smooth)50 (Steep)100+ (Extreme)
12.8

12.8

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)
2.48

2.48

Gradient Distribution

Flat (0-3%)61%
Moderate (3-8%)37%
Steep (>8%)2%

Surface & Hydrology

Paved12%
Unpaved88%

Surface Spectrum Analysis

Asphalt
12%
Gravel
62%
Dirt Track
26%
Water Crossings

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

0

Difficulty Analysis

SCORE: 61

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

Resulting CategoryHard

Bounding Box (WGS84)

MIN LAT: 48.563546
MAX LAT: 48.759008
MIN LON: 1.875775
MAX LON: 2.192604

Point Spacing: 19.6 m • Engine: TrailX Precision GPX ANALYTICS v1.0.0

Reviews & Discussion0

Expedition notes, route modifications, and surface updates shared by the community.

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