Table A-9   Land-surface form terrain features representative of exposed locations.

Land-Surface Form

Exposed Feature (Map Value)

Percentage(a) Area

Plains Plains 93
Plains with Hills Open Plains 79
Plains with Mountains Plains 67
Ridge Crests and Mountain Summits 10
Tablelands Tablelands, Uplands 80
Open Hills Hilltops and Uplands 27
Open Mountains Broad Valleys 80
Ridge Crests and Mountain Summits 12
Hills Hilltops and Uplands 9
Mountains Ridge Crests and Mountain Summits 3

(a) Percentage represents an average over the land-surface forms found in a specific region. In this example the percentages are those from the Northwest region.


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