San Lorenzo, Somiedo, and Ventana Passes Loop

The circular route typically starts and ends in San Martín de Teverga. You should be able to find parking in or around the village, which serves as a convenient base for cyclists tackling this challenging loop.

This route is classified as 'difficult' due to its significant length of over 101 kilometers and a substantial accumulated elevation gain of approximately 2,550 meters. It features three first-category climbs: Puerto de San Lorenzo, Puerto de Somiedo, and Puerto Ventana. Puerto de San Lorenzo, for example, has sections with gradients exceeding 10% and even up to 20-21%.

Given its distance and elevation gain, this route is a full-day endeavor for experienced cyclists. On average, it takes around 6 hours to complete, but this can vary significantly based on your fitness level and how often you stop to enjoy the scenery.

The route primarily uses well-paved roads suitable for road bikes. The asphalt quality is generally good, with some sections, particularly on Puerto de San Lorenzo, described as 'impeccable'. However, expect typical mountain road conditions, including numerous switchbacks on ascents and potential variations due to weather. Caution is advised on descents due to steep gradients and the possible presence of livestock.

You can expect breathtaking mountain scenery throughout, as the route traverses the natural landscapes of Asturias and the Somiedo Natural Park. Panoramic views are abundant, especially from the summits of the passes. The San Lorenzo Pass offers impressive vistas of surrounding peaks, and the ascent of Somiedo Pass transitions from lush valleys to expansive open views.

Yes, the route passes several notable points. Besides the three major passes (San Lorenzo Pass, Somiedo Pass, and Puerto Ventana), you'll also pass near the Huerta Cave. The route itself is considered one of the most beautiful road cycling trails in Asturias.

The best time to cycle this route is typically from late spring to early autumn (May to October) when the weather is more stable and the mountain passes are clear of snow. Summer months offer warmer temperatures, but spring and autumn provide pleasant cycling conditions and vibrant landscapes. Always check the local weather forecast before you go.

Generally, no special permits or entrance fees are required for cycling on the public roads that traverse the Somiedo Natural Park. However, as a protected area, it's essential to respect all park regulations, stay on marked roads, and avoid disturbing wildlife or the natural environment.

This is a road cycling route, and while dogs are generally allowed in public areas, bringing a dog on a demanding 100km road cycling trip is not practical or recommended. If you are looking for dog-friendly activities in the area, consider shorter hiking trails where your dog can safely accompany you.

Yes, the route briefly intersects with sections of several other paths, including the [CIMA AS01] Ventana, [CIMA AS13] Somiedo, [CIMA AS06] San Lorenzo * La Plaza (Teverga), [CIMA AS06] San Lorenzo * La Riera (Somiedo), and the Transcantábrica.

The route passes through rural mountain areas, including the Somiedo Natural Park. It's common to encounter livestock such as horses and cows freely roaming on or near the roads, especially in higher sections. Always be vigilant, slow down, and give animals plenty of space. While less common, you are in a natural park, so respect the local wildlife.