Plizio Visual Lab
Historic Route Territoriale 1

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Route Territoriale 1 (RT1) is the historic backbone of New Caledonia's road network, stretching from the capital of Nouméa to the northern reaches of the main island, Grande Terre. Its origins date back to the 19th century when the French colonial administration prioritized a land link between the southern administrative centers and the developing northern regions. Historically referred to as the 'convict road,' much of its early construction was carried out by penal labor, often following ancient trails long established by the indigenous Kanak people. The RT1 winds along the western coast, passing through diverse terrain ranging from vast cattle ranches to the rugged foothills of the central mountain range. Many of the original colonial-era stone bridges remain standing as testament to the engineering challenges of the period. Today, the RT1 is a vital economic lifeline, essential for the transport of nickel, the island's primary export, and serves as a cultural thread connecting the diverse communities of the archipelago.
- Location: New Caledonia
- Nearby: La Tontouta (24 km)
Best time to visit & climate
The most pleasant time to visit is Jun, Sep, Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 26 | 26 | 25 | 24 | 22 | 21 | 20 | 20 | 21 | 22 | 23 | 25 |
| Rain mm | 124 | 122 | 171 | 105 | 91 | 75 | 63 | 61 | 41 | 45 | 57 | 87 |
📋 Practical info
Geography
Facts
- Total length of approximately 450 kilometers across Grande Terre.
- Connects Nouméa to the northern town of Koumac.
- Underwent significant expansion during the 1960s nickel boom.
- Runs mostly along the West Coast of the main island.
- Serves as the primary logistics route for major nickel mines.
- Most sections were only paved after World War II.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Historic Route Territoriale 1 (1)
Sights nearby
Frequently asked questions
Why is Route Territoriale 1 historic?
What is the road condition?
How long does a transit take?
Are there scenic highlights?
When is there the least traffic?
Historic Route Territoriale 1: where is it located?
Historic Route Territoriale 1: when is the best time to visit?
Historic Route Territoriale 1: why is it worth visiting?


















