Genesis 38:13 - Timnath or Timnah?

And it was told Tamar, saying, Behold thy father in law goeth up to Timnath to shear his sheep.

Timnath was not the Timnath of Sampson (Judges 14:1), which is on lower ground than Adullam. Most likely, it is the Timnah of Joshua 15:10, 57, about 10 mile west of Bethlehem.