NEMAN
| 5 |
ONEGA
| 5 |
MEMEL
| 5 |
DWINA
| 5 |
DUENA
| 5 |
WOLGA
| 5 |
ISCHIM
| 6 |
ANADYR
| 6 |
DNJEPR
| 6 |
PREGEL
| 6 |
WJATKA
| 6 |
IRTYSCH
| 7 |
JENISSEI
| 8 |
TSCHULYM
| 8 |
PETSCHORA
| 9 |
3 | |
DNEPR
| 5 |
DONEZ
| 5 |
3 | |
MOSKWA
| 6 |
DNISTER
| 7 |
RUSSLAND
| 8 |
ILA
| 3 |
LENA
| 4 |
2 | |
2 | |
3 | |
TOBOL
| 5 |
JENISSEI
| 8 |
TUNGUSKA
| 8 |
3 | |
DON
| 3 |
2 | |
3 | |
3 | |
3 | |
3 | |
3 | |
JANA
| 4 |
LENA
| 4 |
AMUR
| 4 |
ANADYR
| 6 |
USSURI
| 6 |
OMELEN
| 6 |
KOLYMA
| 6 |
IRTYSCH
| 7 |
JENISSEI
| 8 |
JENNESEI
| 8 |
TSCHULYM
| 8 |
TUNGUSKA
| 8 |
INDIGIRKA
| 9 |
JENISSEJ
| 8 |
ALDAN
| 5 |
ANGARA
| 6 |
ARGUN
| 5 |
ILLI
| 4 |
KATUN
| 5 |
2 | |
ONON
| 4 |
SEJA
| 4 |
TOBOL
| 5 |
WITIM
| 5 |
3 | |
DRAU
| 4 |
SAVE
| 4 |
3 | |
IRAWADI
| 7 |
MEKONG
| 6 |
JUBA
| 4 |
EBRO
| 4 |
TAJO
| 4 |
DUERO
| 5 |
GUADALQUIVIR
| 12 |
DOURO
| 5 |
2 | |
TER
| 3 |
ORINOKO
| 7 |
MEKONG
| 6 |
ORANJE
| 6 |
SAMBESI
| 7 |
LIMPOPO
| 7 |
2 | |
3 | |
BRAK
| 4 |
RIET
| 4 |
SALT
| 4 |
SAND
| 4 |
VAAL
| 4 |
HARTS
| 5 |
TARKA
| 5 |
WILGE
| 5 |
BASHEE
| 6 |
DORING
| 6 |
MODDER
| 6 |
MOKOLO
| 6 |
TUGELA
| 6 |
BUFFELS
| 7 |
GOURITS
| 7 |
KARIEGA
| 7 |
GREATKEI
| 8 |