Jearim
The name Jearim means “a leap; woods”.
Easton's Bible Dictionary 1897
Forests, a mountain on the border of Judah (Josh. 15:10).
Smith's Bible Dictionary 1863
(forests), Mount, a place named in specifying the northern boundary of Judah. (Joshua 15:10) The boundary ran from Mount Seir to "the shoulder of Mount Jearim, which is Cesalon" --that is, Cesalon was the landmark on the mountain. Kesla , seven miles due west of Jerusalem, stands on a high point on the north slope of a lofty ridge, which is probably Mount Jearim.