sawing or trontza, traditional navarrese and basque country sport

sawing trontza traditional navarrese basque country handle sawblade sport begining start competitors cut trunk rings centimeters thick herri kirolak basques rural sports pamplona traditions physical work festival horizontally iron stand competition 2meterlong hand double buck pulling pushing log wood stroke ratchet tensioner straps shavings sawdust selective focus high speed young people outdoors endurance hard public area space twoman misery whip two sawyers human power technique wedges trees strength tooth design