visible depression in the ground or surface curved or angular edges possibly a discoloration or change in texture a difference in height relative to the surrounding area a difference in color or hue relative to the surrounding area
indention which has visible depression in the ground or surface indention which has curved or angular edges indention which has possibly a discoloration or change in texture indention which is a difference in height relative to the surrounding area indention which is a difference in color or hue relative to the surrounding area