Col de Tastun is a climb of 21.8 kilometers (hors catégorie). Col de Tastun tops out at 2,535 m above sea level. It is located in Ձագիկավան, Սյունիքի մարզ, Հայաստան. The average gradient is 6.2% with a maximum of 15.7%. The climb has 1349 meters of elevation gain.
Difficulty breakdown: At 21.8 km for 1,349 m of climbing and an average gradient of 6.2%, this one earns its HC rating. The climb splits into two parts: an easier, rolling start up to km 7 (gradients between -2% and 6%), then a long, sustained section from km 7 onward, with several stretches at 9% between km 11 and km 14 and a maximum of 10% at km 17-18. The real challenge is the consistency of the effort, because the gradient never drops below 4% over the last 15 km.
Pacing tips:
1. Save something for the first third. On the first two km at 6% and then 8%, don't go out too hard, or you'll pay for it in the 9% section between km 11 and km 14.
2. Make the most of the flat and the descent from km 2 to 6. The 3% and 2% stretches, followed by the gentle -2% at km 5-6, are your chance to recover, drink and eat before the hard part.
3. Manage the final kilometres. After the 10% wall at km 17-18, there are still 7% and then 4% grades from km 19 to 21.8, so keep enough in your legs to finish strong rather than getting caught out by the steepest ramp.
For cyclists who have climbed it, the Vorotan Pass is far more than just an altitude figure; it is a high point, literally and emotionally. The shared experience is that of reaching your personal summit, marked by a symbolic ride through the gate-shaped monuments, a highlight that many take the time to capture on camera.
The atmosphere at the top is described as raw and authentic. Riders feel a noticeable drop in temperature: it is colder and windier than in the valley below, in a setting of wild beauty that is sometimes deserted. It is a place that imposes its own atmosphere, far from the hustle and bustle.
A small shop is there for a break, but riders are unanimous: prices are higher than elsewhere, something to keep in mind for anyone planning to stop for a refreshment.
21.8 km • 1349 m D+
VAM: average climbing speed, based on elevation gain
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