Occurence: Secret Wars #4

In the Secret Wars, the Beyonder takes a number of villains and heroes from Earth and put them on a planet to fight. During one of the early battles, a 150 billion ton mountain is dropped on the heroes and the Hulk is able to hold up the entire mountain by himself until they figure out how to get out.

Hulk's Strength Feats

Incredible Feats of the Hulk Main Page