Problem of the Week: Corners 

Which of the following best describes a corner for which no evidence of any kind can be found?

(A) obliterated corner

(B) lost corner

(C) extant corner

(D) existent corner

In the Public Land Surveying System, three terms are used to describe the condition of monumentation: existent, obliterated, and lost. An existent corner can be found by its monumentation, accessories, field notes, or by some other acceptable supplemental evidence or testimony. An obliterated corner cannot be located by evidence of its monumentation or accessories, but may be located beyond a reasonable doubt by testimony or some acceptable record evidence. A lost coner cannot be located by testimony, physical, or record evidence. A lost corner can only be reestablished by reference to other known corners.

The answer is (B).


This is problem 52 (5-10) from the NEW third edition of “Surveying Solved Problems for the FS and PS Exams” by Jan Van Sickle, PLS (formerly "1001 Solved Surveying Fundamentals Problems"). Reprinted with permission from “Surveying Solved Problems for the FS and PS Exams” by Jan Van Sickle, PLS (2008 Professional Publications Inc.). For details on this and other FLS exam-prep books, call 800/426-1178 or visit www.ppi2pass.com.