Arga: Eugui-Zubiri III 6.28 km Arga @ Eugui 0.56 m³/s @ 01:15 4 | 6 .. 16 | 20 m³/s
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Beartzun: Baztan Aventura Park - Puente del Molino IV (V) 3.41 km
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Irati: Foz de Lumbier II-III 7.17 km Irati @ Liédena 8.39 m³/s @ 01:15 6 | 9 .. 30 m³/s
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Irati: Olaldea - Oroz-Betelu IV 4.24 km Irati @ Irati-Oroz - Betelu 11 cm @ 00:45 25 | 30 .. 40 | 50 cm
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Leizaran IV (V) 3.17 km Oria @ Leitzaran 1.18 m³/s @ 01:40 5 | 10 .. 20 | 30 m³/s
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Salazar: Foz de Arbayun IV 7.78 km Salazar @ Aspurz 0.29 m³/s @ 01:15 10 | 15 .. 45 m³/s
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Ubagua III 1.33 km Inaroz @ Ubagua-Riezu 13 cm @ 01:15 90 | 100 .. 150 | 160 cm
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Urederra: Urederra (Inzura) III 1.48 km Urederra @ Eraul 66 cm @ 01:15 90 | 120 .. 170 | 180 cm
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Urrizate IV-V (X) 2.69 km Nive @ Ossès 40 cm @ 01:30 80 | 90 .. 180 cm (Indirect calibration!)
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Urrobi: Camping de Urrobi - Puente de Arrieta III (IV) 7.15 km Urrobi @ Espinal (GN) 12 cm @ 01:15 40 | 45 .. 70 | 100 cm
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