Plains Like Ussuri Plain

Amur-Zeya Plain

Plain

5.29 Mediocre

Wei River Plain (Guanzhong)

Plain

7.82 Good

Manchurian Plain

Plain

6.85 Fair

Fergana Valley

Plain

6.61 Fair

Dnieper Lowland

Plain

6.42 Fair

Maritsa Plain

Plain

5.98 Mediocre

Kura-Araks Lowland

Plain

5.98 Mediocre

Kuban Plain

Plain

5.80 Mediocre

Tone Plain

Plain

5.35 Mediocre

Tigris-Euphrates Plain

Plain

9.25 Excellent

Lena

River

9.19 Excellent

Angara

River

8.82 Great

Kamchatka

River

8.77 Great

Punjab Plains

Plain

8.55 Great

Chengdu Plain

Plain

8.45 Great

Irtysh

River

8.43 Great

North China Plain

Plain

8.39 Great

Huang-Huai-Hai Plain

Plain

8.35 Great

Central Lowlands of Thailand

Plain

8.30 Great

Brahmaputra Valley

Plain

8.20 Great

Khuzestan Plain

Plain

8.20 Great

Olenyok

River

8.16 Great

Lena River

River

8.05 Great

Cilician Plain

Plain

8.00 Great