Land surveyors manage survey parties that measure distances, directions, and angles between points and elevations of points, lines, and contours on the earth's surface.

They plan the fieldwork, select known survey reference points, and determine the precise location of important features in the survey area. Surveyors research legal records and look for evidence of previous boundaries. They record the results of the survey, verify the accuracy of data, and prepare plots, maps, and reports. Surveyors who establish boundaries must be licensed by the state in which they work.

-- Tips courtesy of HomeAdvisor.com