landmark

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landmark

In surveying, a permanent feature on the land, used as a reference point. If it is necessary to remove a landmark for development or other purposes, the best practice would be to contact the local government engineer or mapping office and ask that a witness monument be set in the place of the former landmark. (Some states require this by law.)

References in periodicals archive ?
Given the limited information found in the literature, the goal of this study was to evaluate the reproducibility of soft tissue cephalometric landmark identification using direct digital radiography and conventional radiography.
A previous study of 9 children with Vitamin-D resistant rickets found that facial growth in these patients was retarded and that mandibular growth was less retarded than maxillary growth, which showed marked reduction in height and length using some cephalometric landmarks [Tracy and Cambell, 1968].
A more recent research work is done on automatic localization of cephalometric landmarks on digitized 2D X-ray images [7].
Undoubtedly, new cephalometric landmarks and analyses based on 3 D data shall be developed in the near future.