{ "event": { "token": "TOKEN", "expectedAction": "USER_ACTION", "siteKey": "6Lej0eIUAAAAAHOLSU4aUgUYjzR7NriKglQuMvr2", } }

Click on the double arrow in the upper left of the map to see the Legend. From there you can check/uncheck different data viewing options. Use the +/- to scale the map. Hold mouse down on map to move the map. A lot of options to enjoy this amazing map from the Palomar GIS Student Service Learning Presentation.