Hard
Cycling
🇫🇷 France
Satellite

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

ID: FR-OCC-20

Col du Portet

Added on 10 Oct 2026
Logged by @trailx

Col du Portet (2,215 m) is one of the great Tour de France climbs. The classic side starts in Saint-Lary-Soulan: 16.0 km at an average 8.7%, gaining about 1,400 m. The highest summit finish in the French Pyrenees and one of the hardest climbs in France. First Tour appearance: 2018 (2 finishes). Pogačar won here in yellow on 14 July 2021.

Trail Map

Initialising Map Engine...

Trail Profile

General Instructions

Season: Summer (ski area above). 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.

Weather check

At Start
821m

Sampling Micro-Climate...

42.8171, 0.3221

Slide to preview conditions across the entire route • Point: 42.8171, 0.3221 @ 821m

Quick Stats

Distance
17.7 km
Type
Cycling Sector
Elevation Range
814m - 2205m
Max Elevation
2205 m
Max Gradient
25.1%
3.5%

Highlights

  • Ride the Saint-Lary-Soulan side, the way the Tour climbs it
  • Top out at 2,215 m
  • Pogačar won here in yellow on 14 July 2021
  • The highest summit finish in the French Pyrenees and one of the hardest climbs in France

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

+1389 m

Total Descent

-8 m

Ruggedness Index

Terrain Roughness Index

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

0 (Smooth)50 (Steep)100+ (Extreme)
78.9

78.9

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)
2.46

2.46

Gradient Distribution

Flat (0-3%)8%
Moderate (3-8%)7%
Steep (>8%)85%

Surface & Hydrology

Paved100%
Unpaved0%

Surface Spectrum Analysis

Asphalt
100%
Water Crossings

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

1

Difficulty Analysis

SCORE: 60

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

Resulting CategoryHard

Bounding Box (WGS84)

MIN LAT: 42.816876
MAX LAT: 42.837075
MIN LON: 0.236499
MAX LON: 0.325937

Point Spacing: 15.3 m • Engine: TrailX Precision GPX ANALYTICS v1.0.0

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Plan this trip

Before you go: Col du Portet

Best time to go

Jun–Sep

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.

Navigate it offline

Download this trail and its map in the free TrailX app for turn-by-turn guidance, off-route alerts and GPS recording without signal.

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