A boundary line indicated by a stone, stake, etc. (Deut. 19:14; 27:17; Prov. 22:28; 23:10; Job 24:2). Landmarks could not be removed without incurring the severe displeasure of God.
Easton’s Bible Dictionary
Landmark
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.