| 2024-08-22 | Spain's longest river |
| 2023-05-17 | Longest river entirely within Spain |
| 2020-05-28 | River through Spain |
| 2018-05-06 | River that rises in the Cantabrian Mountains |
| 2016-09-06 | Second-longest river in Iberia |
| 2014-06-22 | River that drains the western Pyrenees |
| 2014-01-21 | Iberian river |
| 2013-04-18 | River of Iberia |
| 2013-03-26 | Iberian Peninsula river |
| 2012-12-24 | Spain's longest river |
| 2010-11-09 | River of Aragón |
| 2010-09-16 | River through Castile and León |
| 2010-09-06 | Spain's longest river |
| 2010-02-18 | River through Logroño and Aragon |
| 2010-02-04 | River that was the ancient dividing line between Rome and Carthage |
| 2010-01-06 | River to the Mediterranean |
| 2009-12-24 | River that ends in Tarragona |
| 2009-04-14 | River of Spain |
| 2009-01-18 | The Aragón River flows into it |
| 2009-01-11 | Zaragoza's river |
| 2008-09-21 | River that rises in Cantabria |
| 2008-05-26 | Longest Spanish river |
| 2008-03-08 | It rises in the Cantabrian Mountains |
| 2008-02-19 | River of Spain |
| 2007-08-16 | Battle of the ___, in the Spanish Civil War |
| 2007-05-07 | Spanish river to the Mediterranean |
| 2006-12-22 | Saragossa is on it |
| 2006-07-23 | River whose delta is Cape Tortosa |
| 2006-07-03 | River of Spain |
| 2006-02-16 | Spanish river to the Mediterranean |
| 2006-02-06 | River of Spain |
| 2005-11-07 | Longest river of Spain |
| 2005-10-25 | River of Aragón |
| 2005-08-24 | Saragossa's river |
| 2004-12-18 | Miranda de ___, Spain |
| 2004-01-30 | River rising in the Cantabrian Mountains |
| 2004-01-13 | Saragossa's river |
| 2003-08-05 | Spain's second-longest river |
| 2003-07-31 | Saragossa's stream |
| 2002-11-20 | Rain in Spain collector |
| 2002-09-29 | River through Zaragoza |
| 2001-11-18 | Aragón River's outlet |
| 2001-04-14 | Zaragoza's river |
| 2001-01-29 | River of Spain |
| 2000-08-23 | River of Aragón |
| 2000-06-22 | Catalan river |
| 2000-03-28 | River of Aragón |
| 2000-03-16 | Zaragoza's river |
| 1999-12-19 | Tortosa's river |
| 1998-04-01 | River in Spain |
| 1998-02-22 | River through Aragón |
| 1997-03-27 | River through Aragon |
| 1997-01-01 | River in Spain |
| 1996-11-22 | The Aragon flows into it |
| 1996-04-13 | Catalonian river |
| 1996-03-22 | River to the Mediterranean |
| 1996-01-06 | River rising in the Cantabrian Mountains |
| 1994-11-24 | Spanish river |
| 1994-11-05 | Rain in Spain collector |
| 1994-09-25 | Zaragoza's river |
| 1994-02-28 | River of Spain |
| 1994-02-24 | Iberian river |
| 1993-12-21 | Catalonian river |