Home Destinations France OccitaniaCol d'Aspin

Moderate

Cycling

🇫🇷 France

Satellite

This track was identified and mapped via high-resolution satellite imagery.

ID: FR-OCC-16

Col d'Aspin

Added on 10 Oct 2026

Logged by @trailx

Col d'Aspin (1,489 m) is one of the great Tour de France climbs. The classic side starts in Arreau: 12.0 km at an average 6.5%, gaining 779 m. Usually paired with the Tourmalet or Peyresourde. First Tour appearance: 1910 (about 71 times). Gino Bartali and the Italian teams quit the 1950 Tour after riders were attacked by spectators here.

Trail Map

Initialising Map Engine...

Trail Profile

General Instructions

Season: Summer and autumn. Carry a windproof layer for the descent, enough water and food for the climb, and check road status before you go. Descend with care: these are open roads shared with cars and motorbikes.

Mission Logs25 waypoints

Distance	Direction & Instruction	Gradient
0.0 km	N Start Point	1%
0.5 km	W Continue on track	0%
1.0 km	N Continue on track	5%
1.6 km	NW Steep Ascent	11%
2.1 km	NW Continue on track	5%

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

Weather check

At Start

706m

Sampling Micro-Climate...

42.9056, 0.3593

Slide to preview conditions across the entire route • Point: 42.9056, 0.3593 @ 706m

Quick Stats

Distance

11.53 km

Type

Cycling Sector

Elevation Range

705m - 1479m

Max Elevation

1479 m

Max Gradient

20.3%

0.4%

Highlights

Ride the Arreau side, the way the Tour climbs it
Top out at 1,489 m
Gino Bartali and the Italian teams quit the 1950 Tour after riders were attacked by spectators here
Usually paired with the Tourmalet or Peyresourde
Ride a climb from the 2025 and 2026 Tour de France

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

+771 m

Total Descent

-2 m

Ruggedness Index

Terrain Roughness Index

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

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

67.0

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)

2.38

Gradient Distribution

Flat (0-3%)7%

Moderate (3-8%)18%

Steep (>8%)75%

Surface & Hydrology

Paved99%

Unpaved1%

Surface Spectrum Analysis

Asphalt

99%

Dirt Track

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: 43

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

Resulting CategoryModerate

Bounding Box (WGS84)

MIN LAT: 42.905623

MAX LAT: 42.943864

MIN LON: 0.327382

MAX LON: 0.360029

Point Spacing: 19.9 m • Engine: TrailX Precision GPX ANALYTICS v1.0.0

Reviews & Discussion0

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Plan this trip

Before you go: Col d'Aspin

Best time to go

Apr, May, Jun, Sep, Oct

June to September is best for Alpine and Pyrenean routes; spring and autumn suit Provence, Occitania and the Loire, while Réunion is driest from May to November and prone to cyclones from January to March.