Plains Like Mackenzie River Lowlands

Peace River Lowland

Plain

5.26 Mediocre

Hudson Bay Lowlands

Plain

5.20 Mediocre

Mackenzie River Delta

Marsh

8.67 Great

Plains of Abraham

Plain

8.45 Great

Old Crow Flats

Marsh

8.44 Great

Hudson Bay

Bay

8.38 Great

Ungava Bay

Bay

7.92 Good

Koksoak River Delta

Delta

7.81 Good

Nelson River Delta

Delta

7.72 Good

Slave River Delta

Swamp

7.72 Good

James Bay

Bay

7.62 Good

Mississippi Alluvial Plain

Plain

7.57 Good

San Joaquin Valley

Plain

7.19 Good

Interior Plains (Canada)

Plain

6.97 Fair

Willamette Valley

Plain

6.92 Fair

Sacramento Valley

Plain

6.76 Fair

Saskatchewan Plain

Plain

5.80 Mediocre

Manitoba Lowland

Plain

5.41 Mediocre

Columbia

River

9.32 Excellent

Tigris-Euphrates Plain

Plain

9.25 Excellent

Bay of Fundy

Bay

9.20 Excellent

Whistler Blackcomb

Ski Resort

9.04 Excellent

Saint Lawrence

River

9.03 Excellent

Writing-on-Stone / Áísínai'pi

Petroglyph

9.03 Excellent