rising ground

bluff cliff dune highland hillside hilltop ridge slope

acclivity ascent butte climb down drift elevation eminence esker fell gradient headland heap height hillock hummock inclination incline knoll mesa mound mount precipice prominence promontory protuberance range rise shock stack summit talus tor upland

bottom decline depression nadir

canyon ditch gully

ascent climb rising surge upsurge

acclivity ascension elevation eminence highland hillock incline lift mount soaring towering upland

decline decrease drop fall slump worsening

hill ramp shelf

abruptness bank bend bevel bias cant declination declivity deflection descent deviation diagonal downgrade gradient inclination incline lean leaning obliqueness obliquity pitch rise skew steepness swag sway tip

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