Figure 1a. Section of the Maine Geological Survey Sand and Gravel Aquifer Map for the Augusta quadrangle illustrating many of the types of data used in delineating sand and gravel aquifers. Click map to enlarge.
Figure 1b. Section of the Maine Geological Survey Surficial Materials Map for the Augusta quadrangle illustrating pit descriptions as well as other data used for delineating sand and gravel aquifers. Click map to enlarge.
