"Normally, if you fly over a mountain, you expect to see an increase in gravity due to the extra mass of the mountain. On Titan, when you fly over a mountain the gravity gets lower. That's a very odd observation," said Nimmo, a professor of Earth and planetary sciences at UC Santa Cruz.
http://www.dailygalaxy.com/my_weblog/2013/08/saturns-titan-reveals-strange-gravity-phenomenon.html

 

"What's more, gravity is weaker at the equator because of the outward centrifugal force produced by the Earth's rotation relative to the polar latitudes. And the higher you go, the further you are from the Earth's center."

http://io9.com/new-high-res-maps-of-earth-s-surprisingly-inconsistent-1171851670 

Which one is it??   

I would expect that at the top of a mountain there is more gravity because there is more mass under the mountain...

If this is not the case I would say that this is evidence for some kind of push gravity with more mass shielding the tops of the mountains...
What if gravity has a maximum force that it exerts?? That would allow for an iron sun....

Brant