Science reporting

How stupid are science reporters? How about this from MSNBC:
"The images show that refrozen ice makes up 24 percent of an area known as Dome A, a 13,800-foot-high plateau roughly the size of California. Much of the sheet and refrozen ice lies atop an underground mountain range."
What is this, Jules Verne? Journey to the Center of the Earth? How can you have an UNDERGROUND mountain range???