the pit and mound microtopography formed as a result of tree uprooting and its attendant displacement of soil; the resulting microrelief —note 1. cradle knolls occur in forest areas subject to windthrow with dimensions and general characteristics varying according to tree size, depth to a root-restricting layer, slope, rapidity of creep, or the downslope movement of surface material and soil —note 2. the absence of microrelief on sites otherwise suitable for its development is presumptive evidence of former cultivation or other artificial disturbanceThis definition last updated 07/28/2008