"Professional land surveyor." As defined under the act of May 23, 1945 (P.L. 913, No. 367), known as the Engineer, Land Surveyor and Geologist Registration Law.
"Survey monument or marker." Any object adopted or placed by a professional land surveyor to define the boundaries of a property, including, but not limited to, natural objects such as trees or streams, or artificial monuments such as iron pins, concrete monuments, set stones or party walls. The phrase does not include a wooden stake placed by a professional land surveyor as a temporary marker or place holder.
18 Pa.C.S. § 3312