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https://carrerasdemontana.com/2018/05/30/maraton-alpino-madrileno-2018-2-3jun-mam-42k-cross-del-telegrafo-17k-y-minimam-info-trazado-e-historia/
MARATON ALPINO MADRILEÑO 2018 (2-3JUN): MAM 42k, Cross del Telégrafo 17k y Minimam. Info, trazado e historia