Surface Forms of Mineral Soils in the Prairie Provinces

View a larger version of this image (jpg).  (Dissected)
Dissected
Dissected


View a larger version of this image (jpg).  (Rolling)
Rolling
A very regular sequence of moderate slopes extending from rounded, sometimes confined concave depressions to broad, rounded convexities producing a wavelike pattern of moderate relief. Slope length is often 1.6 km or greater and gradients are greater than 5% (3°)


View a larger version of this image (jpg).  (Undulating)
Undulating
A regular sequence of gentle slopes that extends from rounded, sometimes confined concavities to broad rounded convexities producing a wavelike pattern of low local relief. Slope length is generally less than 0.8 km and the dominant gradient of slopes is 2-5% (1-3°)


View a larger version of this image (jpg).  (Hummocky)
Hummocky
A very complex sequence of slopes extending from somewhat rounded depressions or kettles of various sizes to irregular to conical knolls or knobs. The surface generally lacks concordance between knolls or depressions. Slopes are generally 9-70% (5-35°)


View a larger version of this image (jpg).  (Knoll and kettle)
Knoll and kettle
Knoll and kettle


View a larger version of this image (jpg).  (Level)
Level
A flat or very gently sloping, unidirectional surface with a generally constant slope not broken by marked elevations and depressions. Slopes are generally less than 2% (1°)