Elevation Interact Map Viewer

The Elevation Interact Map is a map in the ArcGIS Online Map Viewer. The main advantage is that you can apply available raster functions to each elevation layer. The map also has many other tools and abilities because it is the ArcGIS Online Map viewer after all. The disadvantage for some users is that it is GIS-y and can be confusing or overwhelming. If this is you, stick to the Elevation Viewer.

ArcGIS Online is a deep online web GIS. The help here is directly related to the elevation layers. Refer to help on CT ECO or in depth help about ArcGIS online and its many capabilities. You do not need an account to use the map, however you do need an account to save.

Before You Start

Before You Start


  • Create a free, public ArcGIS Online account OR
  • if you work for an organization with ArcGIS, contact your GIS administrator and inquire about an ArcGIS online organizational account OR
  • go to the Elevation Interact Map and click Modify Map in the upper right corner.


The Layers panel on the left lists the layers in the map. Click the eyeball to show or hide a layer. The layers form a stack (bottom of the list draws on the bottom of the stack) and each can be turned on and off. An  eye icon means the layer is visible (as long as no other layer higher on the list is turned on and is hiding it from view).

Zoom to the area of interest using the zoom tools  or the mouse scroll wheel.

Reorder the layers by clicking and dragging a layer up or down on the list.

Transparency makes the layer see-through. Find Transparency under the Layer Properties panel is opened by clicking Properties icon in the upper right. Transparency is a sliding scale from 0% (nothing showing through) to 100% (layer is completely transparent and therefore not visible). Slide the bar to change the transparency of that layer.

Image Display and Raster Functions

Image Display and Raster Functions

Go to the raster function page for detailed instructions on applying raster functions in ArcGIS Online.

Clicking on the map is another way to get more information about that feature or location. The information is shown in a pop-up window and is only displayed for layers that are turned on (checked) in the layer list (see above) AND have pop-ups enabled. All elevation layers in the Elevation Interact map have pop-ups enabled by default.

Multiple results occur when a location is clicked where more than one layer both exists and is turned on. It is evident by the top banner in the pop-up. If the pop-up banner says (1 of some number), it means that multiple records have come up at that location. To see the next, click on the tiny right arrow in the upper right of the window.

The pop-ups have been customized to only show the elevation value. There are many options for customizing pop-ups in the map including making more attributes visible. Look for Pop-ups icon on the right icon banner to access pop-up settings.

Find Elevation

The elevation is reported in the pop-up. Note that elevation values are in meters for all datasets EXCEPT the 2016 which is in feet.

Add Other CT ECO Layers

There are a number of ways to add other layers to your ArcGIS Online map. Detailed instructions can be found on the CT ECO on ArcGIS Online help page.