Je'arim. (forests). Mount Jearim. 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.