DRAVINJA
| 8 |
NATISONE
| 8 |
LABOTNICA
| 9 |
KUTSCHENITZA
| 12 |
6 | |
6 | |
SALUEN
| 6 |
IRAWADI
| 7 |
CHINDWIN
| 8 |
AISNE
| 5 |
JUBBA
| 5 |
SHEBELE
| 7 |
JUBA
| 4 |
NUGAAL
| 6 |
SHEBELI
| 7 |
MERKA
| 5 |
DJUBA
| 5 |
NOGAL
| 5 |
SHABELLE
| 8 |
TOGDHEER
| 8 |
SHABEELLE
| 9 |
WEBISHEBELI
| 11 |
4 | |
5 | |
BRUE
| 4 |
SANTEE
| 6 |
BIGSIOUXRIVER
| 13 |
BOISDESIOUXRIVER
| 16 |
CHEYENNERIVER
| 13 |
FRENCHCREEK
| 11 |
GRANDRIVER
| 10 |
JAMESRIVER
| 10 |
LITTLEMINNESOTARIVER
| 20 |
EGA
| 3 |
TER
| 3 |
EBRO
| 4 |
TAJO
| 4 |
DUERO
| 5 |
2 | |
PAS
| 3 |
SIL
| 3 |
RIO
| 3 |
ARA
| 3 |
RIA
| 3 |
CEA
| 3 |
TET
| 3 |
DEBA
| 4 |
ESLA
| 4 |
ARBA
| 4 |
ORIA
| 4 |
ELSA
| 4 |
VERO
| 4 |
DEVA
| 4 |
ESVA
| 4 |
SAJA
| 4 |
ARGA
| 4 |
TEJO
| 4 |
TERA
| 4 |
MINO
| 4 |
NAVIA
| 5 |
BESOS
| 5 |
ACEBO
| 5 |
RODIL
| 5 |
JALON
| 5 |
NALON
| 5 |
ODIEL
| 5 |
UROLA
| 5 |
TURIA
| 5 |
SORIA
| 5 |
ALLER
| 5 |
JUCAR
| 5 |
ODIET
| 5 |
ADAJA
| 5 |
MINJO
| 5 |
TORIO
| 5 |
CINCA
| 5 |
TINTO
| 5 |
CABRA
| 5 |
BAYAS
| 5 |
DARRO
| 5 |
SEGRE
| 5 |
ESERA
| 5 |
DOURO
| 5 |
SELLA
| 5 |
TURJA
| 5 |
GENIL
| 5 |
PORMA
| 5 |
NEGRO
| 5 |
ABONO
| 5 |
ALISTE
| 6 |
FLUVIA
| 6 |
PORCIA
| 6 |
BARAYO
| 6 |
TORMES
| 6 |
AGUEDA
| 6 |
ALAGON
| 6 |
GORGOS
| 6 |
JARAMA
| 6 |
SEGURA
| 6 |
CAUDAL
| 6 |