This video defines what we mean by the term water table. We go into the field to demonstrate how to measure the depth to groundwater in two wells. We use this information to determine the position of the local water table and the direction of groundwater flow. Finally, we discuss how the depth to the water table may vary and direct viewers to a US Geological Survey website where they can explore groundwater data from nearby wells in their state. Visit our blog (https://geosciencevideos.wordpress.com) for a free quiz about the content in this video.