Most people aren’t aware what a land surveyor does or what land surveying is. Surveying is the technique, professions, art and science of determining the terrestrial or three-dimensional position of a point and the distances and angles that are measured between them. This technique is used in order to establish the size of a plot of land and the buildability of it. WHY HIRE JANES AS YOUR MIDWEST SURVEYOR? As a result of 28 years of experience in construction surveying, Janes Surveying, Inc. is your Midwest surveying specialist. We are located in Palmyra, Missouri and licensed to service you in.