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Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey

1
5.0
2 reviews | Elevation profile | 4 photos
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
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Elevation profile Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey

Statistics

Difficulty points 633
Length 8.6 mi
Average gradient 6%
Steepest segment 13.7%
Total ascent 2707 ft

Short recap

6 hairpin turns
#38 toughest climb of Jura
#35 most elevation gain of Jura
#44 longest climb of Jura
#97 average steepest climb of Ain
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Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey is a climb in the region Ain. It is 8.6 mi long and bridges 2707 ft of vertical ascent with an average gradient of 6%, resulting in a difficulty score of 633. The top of the ascent is located at 3304 ft above sea level. Climbfinder users shared 2 reviews of this climb and uploaded 4 photos.

Road names: Route de Chartreuse & D99

5.0 by jlval69
This is an automatic translation, the original language is: French.
Regular ascent in three sections. The beginning is more difficult than it looks, and the last two km can be surprising. Superb scenery in places. Do it again and again!... read more

Photos (4)

Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
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Reviews (2)

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jlval69
jlval69
4 Mo 5.0 via the Climbfinder app
This is an automatic translation, the original language is: French. Show original

Regular ascent in three sections. The beginning is more difficult than it looks, and the last two km can be surprising. Superb scenery in places. Do it again and again!

Montee régulière en trois tronçons. Le début est plus difficile qu’il y paraît et les deux derniers km peuvent surprendre. Superbes paysages par endroits. À faire et à refaire !

Dashboard
TomJones
TomJones premium
7 Mo 5.0 via the Climbfinder app
This is an automatic translation, the original language is: French. Show original

Released on 8 November 2025. A magical experience.autumn colours and a calm... Not too hard, excellent pass for beginners or for those who want to maintain their skills without too much effort.

Sortie effectuée le 8 novembre 2025. Expérience magique.les couleurs d'automne et un calme... Pas trop dur excellent col pour débuter ou s'entretenir sans trop forcer.

Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey
Dashboard

Climbing times

5 mph 01:43:47
7 mph 01:13:28
9 mph 00:57:15
12 mph 00:43:01

Road surface condition

25% 75% 0%
Based on 8 votes
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Traffic

78% 22% 0%
Based on 9 votes
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Frequently Asked Questions

Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey is a challenging ascent. For this type of climbing, we recommend mountain gearing, specifically a compact system. This means a small front chainring of 34 teeth, combined with a rear cassette where, depending on your level, strength, and experience, you choose a sprocket with 30, 32, or even 34 teeth. Remember that a smooth cadence is always more efficient!

Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey 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 Portes / Calvaire de Portes from Saint Sorlin en Bugey is 8.6 mi long.

The average gradient of Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey is 6%.

Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey has a steepest segment with an average gradient of 13.7%.

The summit of Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey is at 3304 ft.

At a slow pace of 5 mph, it takes about 01:43:47 to climb Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey. At 7 mph the time is 01:13:28, and at 9 mph 00:57:15. For the fastest cyclists, 00:43:01 is an achievable time.

Col de Portes / Calvaire de Portes from Saint Sorlin en Bugey is located in the region Ain in France.

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