You can map a variety of farm variables to visually see how they compare to other fields within your farm. In order to use this feature you need to upload your field data through SnapPlus. Once you have uploaded your data using SnapPlus, open up SnapMaps and go to the Field Properties tab on the Layers panel on the left side of the map.
From here select a variable from the dropdown. The map should change based on your selection. Also a legend should be created to explain what the colors mean. From here you can create a PDF of the map using the Create PDF Variable Map.
Please refer to the video tutorial on Creating Thematic Maps for more information.