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Tips and tools for using the map

Map Basics

Advanced Options



Map Basics

Get to Know the Map Interface

Look around the interface to familiarize yourself with all its features and tools. Hover your cursor over buttons and click them to see what you can do. Close windows by clicking on the "X" in the upper right of the window.

geologic map interface

Zoom In and Out and Move Around the Map

Use the zoom controls to move to preset scales. You can also zoom in and out by using the roller wheel of your mouse. Pan around the map by clicking and holding down the mouse button while dragging the cursor around the map. Reset the map to the default opening scale and extent by clicking on the Home button.

Go to an Address

Type an address in the "Find address" field to zoom to that location. As you type, some suggested locations will appear. Be sure to choose the Oregon address!

Click on the Map to Get Pop-up Information

When you click anywhere on the map, a Pop-up window appears. Contents of these Pop-up windows are described in the sections below.

Depending on how many layers are visible and how far out you are zoomed, you may click an area with multiple data records. The band at the top of the pop-up window will show the number of records. Navigate to each record by clicking on the arrow button.

Show/Hide Map Layers

Toggle the checkbox next to a layer to turn it on and off. The higher-level layer must be toggled on for a sublayer to display, even if you have checked a sublayer's checkbox. Click on the down-pointing arrow to the left of a layer to see what's in that layer. Click on the "..." link to the right of a layer to see the transparency option for that layer. Only some layers have transparency.

Map layers window contents

Layer options:

For more control over how the map appears, you can set the transparency of layers.

map layer window options


Available map layers:

Landslide Inventory (areas and points, various sources)

This group of layers shows information for known landslides, whether point locations and mapped areas. Areas can be defined by scarps, head scarps and deposits.



Change the Transparency of Layers

Change the transparency of some layers so you can more easily see the layers below that layer, for example to see basemap labels under lidar imagery. To change transparency of a layer, click on the down-pointing arrow to the right of a layer name. If the options include Transparency, click on the word to open the transparency slider, then move the slider until you at the transparency you desire.

transparency option

Change the Basemap

You can choose from a variety of basemaps to suit your needs. Click on the Basemap gallery button to select the one you want.

basemap gallery

Print a Map

You can print a map to your local printer or to a PDF. Click on the Print tool button, then follow the directions given in the window. You can adjust the print window area, page layout, page size, scale, and resolution (dots per inch, or dpi), and add your name to the map. The resulting map will not include a legend. You can print the full map legend from this PDF.

print menu

Measure Distances and Areas

You can measure areas and distances on the map, or get the latitude and longitude of a point. Click on the Measurement tool button, then follow the directions given in the Elevation Profile window. Clear the results to start again.

measurement tool result


Get the Latitude and Longitude of a Location

Click on the Measurement tool button, then the Location button. On the map, click where you want to see the coordinates. The green marker shows the coordinates where you clicked, while cursor shows your present cursor location.

Get the lat/long of a point


Advanced Options

Get the SLIDO Data Used to Make the Online Map

If the map does not provide you enough options, you can download the entire SLIDO geodatabase. The geodatabase is an Esri-formatted geodatabase and requires specialty software to open and use.