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ST520 Smolyan - Polkovnik Serafimovo

Hiking Hard Created at: March 17, 2026

Informations

Distance 15.73 km
Elevation gain 1115 m
Elevation loss 1161 m
Altitude minimum 852 m
Altitude maximum 1351 m
Altitude Start 949 m
Altitude End 903 m
Estimated hiking time 5 h 40 min
Difficulty Hard

15.73 km loop hiking starting from Smolyan. Elevation gain is 1115 m, with altitude ranging from 852 m to 1351 m. Estimated time: 5 h 40 min. Starting town: Smolyan (Смолян, Bulgarie).

This hike includes 2 significant climbs. With a total elevation gain of 507 m across 4.28 km, with an average slope of 11.8%.

  • Climb 1 (at km 4.56 km): +402 m over 3.41 km, average slope 11.8%
  • Climb 2 (at km 13.10 km): +105 m over 871 m, average slope 12.1%

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