King James Version
And they went up, and pitched in Kirjathjearim, in Judah: wherefore they called that place Mahanehdan unto this day: behold, it is behind Kirjathjearim.English Standard Version
and went up and encamped at Kiriath-jearim in Judah. On this account that place is called Mahaneh-dan to this day; behold, it is west of Kiriath-jearim.New International Version
On their way they set up camp near Kiriath Jearim in Judah. This is why the place west of Kiriath Jearim is called Mahaneh Dan to this day.