31. International boundary markers are placed and can be maintained by mutual agreement of the bordering countries. 32. Such items therefore are used as boundary markers , positioned in the hedge at set distances apart. 33. The Orontes has long been a boundary marker . 34. Den, depicting him running around the ritual boundary markers as part of the Sed festival ]] 35. Locations typically did not have clearly drawn boundary lines, although sometimes certain landmarks served as boundary markers . 36. It was used for centuries as a boundary marker between the parishes of Sheffield, Hathersage and Ecclesfield. 37. It was first mentioned in a 17th-century document, where it was used as a village boundary marker . 38. The six concrete property boundary markers delineate the property line on the south side of the overlook. 39. These boundary markers in Virginia were added to the National Register of Historic Places on February 1, 1991. 40. The Sandia Pueblo Indians say the etching represents a boundary marker left by a Spanish lieutenant in 1748.
