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Col de Porte from Saint Laurent du Pont

1
4.4
7 reviews | Elevation profile | 10 photos
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
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Elevation profile Col de Porte from Saint Laurent du Pont

Statistics

Difficulty points 734
Length 11.3 mi
Average gradient 5.2%
Steepest segment 17%
Total ascent 3084 ft

Short recap

Beautiful scenery
#58 toughest climb of Isère
#49 most elevation gain of Isère
#18 longest climb of Isère
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Col de Porte from Saint Laurent du Pont is a climb in the region Grenoble. It is 11.3 mi long and bridges 3084 ft of vertical ascent with an average gradient of 5.2%, resulting in a difficulty score of 734. The top of the ascent is located at 4318 ft above sea level. Climbfinder users shared 7 reviews of this climb and uploaded 10 photos.

Road names: D103, D520 & D512

5.0 by Storm
This is an automatic translation, the original language is: Dutch.
Very nice climb, but do not start without preparation. The percentages are not really right. Pieces of more than 10％ especially in the last km you will be surprised. ... read more

Photos (10)

Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
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Reviews (7)

5.0
4.0
3.0
2.0
1.0
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clofrene
clofrene
1 w 5.0 via the Climbfinder app
This is an automatic translation, the original language is: French. Show original

Nice climb, with varied gradients, wide and shaded road for 80% of the ascent

Belle montée, avec des pourcentages variés, route large et ombragée sur 80 % de la montée

Dashboard
XaMen
XaMen premium
3 w 5.0
This is an automatic translation, the original language is: French. Show original

Last climb on my route. I really liked the start, following the river and in the rocks. A few difficulties, but I felt it was fairly easy. Then a flat spot of about 2 km. And then the climb starts again, and after about 150km, I had a hard time, the hunger was there and there was hardly any resting place to recover a bit. The last 5 km were a gutsy affair.

Dernière côte sur mon parcours. J’ai beaucoup aimé le début, en suivant la rivière et dans la roche. Quelques difficultés mais j’ai eu l’impression d’être assez facile. Puis un replat d’environ 2 km. Et ensuite la montée reprend et là j’ai eu du mal après environ 150km, la fringale était là et quasiment pas de replat pour récupérer un peu. Les 5 derniers kilomètres ont été fait au courage.

Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Dashboard
Jeroen
Jeroen premium
10 Mo 4.0
This is an automatic translation, the original language is: Dutch. Show original

The climb up the Col de Porte via this route is beautiful. What the route lacks in vistas it makes up for in rugged nature. The first section leads through a gorge and is tough, but beautiful. You then get a middle section with a few kilometres at 1 or 2％. The finale goes to some higher percentages again with occasional outliers. At the top are some restaurants and there is a tap to fill water bottles. The road surface of this climb is fine, on some parts even pitch-black and brand-new asphalt. The descent on the Grenoble side is bumpy and gets worse the closer you get to the city.

De klim van de Col de Porte via deze route is prachtig. Wat de route mist aan vergezichten maakt ze goed in ruwe natuur. Het eerste deel voert door een kloof en is pittig, maar prachtig. Je krijgt dan een middenstuk met een paar kilometer aan 1 of 2％. De finale gaat weer naar wat hogere percentages met soms een uitschieter. Op de top zijn wat restaurantjes en is een kraantje om de bidons te vullen. Het wegdek van deze klim is prima, op sommige delen zelfs gitzwart en splinternieuw asfalt. De afdaling aan de kant van Grenoble is hobbelig en wordt slechter hoe dichter je de stad nadert.

Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Col de Porte from Saint Laurent du Pont
Dashboard
LucSou
LucSou
1 y 5.0
This is an automatic translation, the original language is: French. Show original

The most beautiful side of the Col de Porte, a route through the woods, along the water's edge, with rocky passages, I recommend it.

Le plus beau versant du col de Porte, parcours dans les bois, au bord de l'eau, avec des passages dans la roche, je recommande

Dashboard
Isa-66293
Isa-66293 premium
1 y 3.0
This is an automatic translation, the original language is: French. Show original

After the Diat, I take the small road that passes through St Hugues and joins the road to the pass further on: it's quieter!

Après la Diat je prends la petite route qui passe par St Hugues et rejoint la route du col plus loin : c'est plus calme !

Dashboard
Storm
Storm
4 y 5.0
This is an automatic translation, the original language is: Dutch. Show original

Very nice climb, but do not start without preparation.
The percentages are not really right. Pieces of more than 10％ especially in the last km you will be surprised.

Zeer leuke beklimming, maar zeker niet aan beginnen zonder voorbereiding.
de percentages kloppen niet echt. Stukken van meer dan 10％ bij zeker de laatste km wordt je verrast.

Col de Porte from Saint Laurent du Pont
Dashboard
achatelet
achatelet
4 y 4.0
This is an automatic translation, the original language is: French. Show original

Easy climb for the most part but the last few km are quite complicated! It's not bad to ride downhill because you have a good visibility, so you can anticipate and hit your best points!

Montée facile dans l'ensemble mais les derniers km sont bien compliqués ! Elle est pas mal à faire en descente car on a une bonne visibilité, on peut donc bien anticiper et taper ses meilleures pointes !

Dashboard

Climbing times

5 mph 02:16:26
7 mph 01:36:36
9 mph 01:15:16
12 mph 00:56:33

Road surface condition

75% 25% 0%
Based on 8 votes
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Traffic

33% 22% 44%
Based on 9 votes
Your experience counts. How much traffic did you encounter during the climb?

Frequently Asked Questions

You don't need special gearing for Col de Porte from Saint Laurent du Pont. The slope isn't long or steep enough to require much shifting down. You can conquer this climb on power alone. However, a compact gearing system with a smallest front chainring of 34 and largest rear sprocket of 28 or 30 is always nice if you enjoy cycling uphill. This helps maintain a smooth cadence.

Col de Porte from Saint Laurent du Pont is a first-category climb: long and tough. Do not underestimate this climb. Many famous Tour de France cols fall into this category. Prepare for a long, challenging ride. Only well-trained riders will reach the top smoothly. Make sure you have a road bike with climbing gears and enough training; otherwise, it will be a struggle.

Col de Porte from Saint Laurent du Pont is 11.3 mi long.

The average gradient of Col de Porte from Saint Laurent du Pont is 5.2%.

Col de Porte from Saint Laurent du Pont has a steepest segment with an average gradient of 17%.

The summit of Col de Porte from Saint Laurent du Pont is at 4318 ft.

At a slow pace of 5 mph, it takes about 02:16:26 to climb Col de Porte from Saint Laurent du Pont. At 7 mph the time is 01:36:36, and at 9 mph 01:15:16. For the fastest cyclists, 00:56:33 is an achievable time.

Col de Porte from Saint Laurent du Pont is located in the region Isère in France.

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