If terrain corrections are not systematically made when conducting gravity surveys, it is a matter of some importance to locate stations away from points for which this effect is a maximum. While this fact is fully appreciated, our literature is deficient in information that a field man could use telling him how large would be the effect of a given topographic feature, or how far away the station should be placed to keep the error within prescribed limits. To meet this need continuous profiles of terrain effects across 47 different forms of two‐dimensional topography have been computed and are presented herewith. These are expressed dimensionlessly so that each figure represents an infinite class of features having the same shape. In addition, the profile for each ridge is also valid for valleys of the same form, but inverted. The data thus are applicable to a double infinity of cases. These profiles are also useful to the interpretive staff for determining quickly whether certain small anomalies are significant, or whether they are more probably the result of local uncorrected terrain.