👉 Gaugers are a type of device used in surveying and mapping to measure elevation. They consist of a series of metal rods or lines that are connected to a measuring device, such as a scale or a ruler. The measurement is typically done by placing one rod at the top of a hill or mountain and another at the bottom, then counting how many times each rod intersects with the measuring device. This method provides an accurate measure of elevation and can be used for a variety of purposes, including