Parque Natural Montes Obarenes-San Zadornil, Castilla y León, España
4.1 miles (6.6 km) · 1,139 ft elevation gain · Loop · trail · Route
San Millán de San Zadornil covers 4.1 miles across Parque Natural Montes Obarenes-San Zadornil, Castilla y León, España. Runners face 1,139 feet of climbing with 1,146 feet of loss. The largest climb extends 1.6 miles, gaining 1,002 feet. The course averages 278 feet of vertical gain per mile. The course is 33% runnable, with the remainder requiring hiking on steep or technical sections. Trail comprises the majority of the course. Terrain difficulty is rated as mountainous. Difficulty is rated 18.5 out of 10, placing it in the 84.52th percentile. Popular among trail runners and hikers seeking Castilla y León adventures.
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