Only if you have a dozen triangulated and known transmitting stations that don't overlap, and a DAMN good receiver. How do you think GPS works? All the same rules apply. Spatial determination is incredibly difficult, even on a 5 meter range, and it's virtually voided in a complex cave system due to
the environmental impact of the received signal vs the possible alignment with transmitters...
A modern GPS system can do pretty good, FREE AIR to ORBIT, the attenuation of RF even low frequency (which exponentially decreases resolution) through rock... 5 meters is more than pushing it. All it takes is a SINGLE nugget of metallic deposit to blank out reception for hundreds of meters.