1)
What is "Tabur ha'Aretz"?
1.
Rashi based on Targum Yonasan: It is the highest mountain.
2.
Radak: Just like the navel is in the middle of the body, so this is the middle of the land and the highest place.
2)
What is "Alon Me'onenim"?
1.
Rashi citing Targum Yonasan: It is the plain of diviners (people who use Nichush to determine good times for things).
