text: where is gravity stronger, on top of mt. mc kinley or at the red sea? distance from center of mass, but shape of mass may be misleading some of the answers above are correct but with inaccurate explanations.  away from earth's surface (a good approximation is sea-level), distance decreases its gravitational pull.  but, under earth's surface, distance also decreases gravitational pull.  at the center of earth, its gravitational pull is zero or negligibly small.  even at the same elevation, gravity has small variations at different locations.  the variations are small enough for us to detect.  but there exists super sensitive people who can detect those variations.  the safe guess is that mt. mckinley has lower gravitational pull.  but to be sure, we need to do measurements there and at the red sea.