[quote="DGFone"]To bring this back from the grave...
As much as I was convinced by you guys that glaciers could have very well been responsible for the creation of Priderock, I found more proof for my volcanic theory: The Lion King itself.
On the global scale, the elephant graveyard and the Pridelands are the same thing - several square miles at most combined. I would wager at most 50. Well, the elephant graveyard is a geothermal hot-spot. All those geysers in it are still active - proof of active geothermal activity. By the time of The Lion King, these geysers are slowly leaking energy from the ground, much like Yellowstone in the U.S. The geysers prevent the energy from accumulating into a large volcanic eruption.
But what many years before, there were no geysers? The land would have held back the energy like a bottle cork until the pressure overwhelmed the ground and there was a large eruption, strong enough to lift or create a large volcanic formation that would later erode into Priderock by the elements?[/quote]
I always thought it was formed by volcanic activity. Priderock reminds me of
Devil's Tower, which is an igneous intrusion.

After quite a bit of weathering, that could look very similar to Priderock.