Skip to main content.

Help

Read this page if you have trouble navigating or understanding the map interface.

Tools
   Pan
   Full Extent
   Map Identify
   Save As PDF
Data Layers
Scale Tool
Address Lookup
Scale and Scale Bar
Location Map
FAQs
"Why doesn't the map appear in my browser?"
"How do I zoom to a particular scale?"
"How do I save or print a map image?"
"Why doesn't the screen update when I click layers on and off?"

GTILO interface

^ TOP

Tools Tab

GTILO Tools and Layers tabs

Use the Tool buttons to navigate the map, see information about specific points in the map, or print the currently displayed map.

Pan - The default tool is the "Pan"(hand) tool, so you can immediately start using the map just by holding down your mouse and dragging the cursor map panning cursor - four sided arrowaround the main map area.


entire Tools tab icon set

Map Identify - Use this tool to learn more about geothermal features. Select the cursor, then click on any geothermal well, spring, or area. A popup window appears listing the feature's name and information for that feature. If necessary, use the scroll bar to the right of the information area to see all the information. Click on the up-pointing arrow at the top right to collapse the window. Click on the X at the top right to close the popup window.

example of geothermal feature popup information

To see all layer data for that point, mouse over the title of the popup window and click on the down-pointing arrow.

map identify popup title area

A list of all avaialbe data for that point, along with the scale at which you can see the data, will appear. Click any name on the list to see the data for that specific item.

map identify title with data list


Info Query tool icon

Full Extent - Click on this tool to return to the full extent of the map. This tool does not reset all the layers; it just resets the map extent.


Download Map Image tool icon

Save As PDF - Click on this tool to create a PDF (portable document format) image of the current map extent and key to geothermal layer data. The PDF will open in a new browser window. Use the browser window's "Save As" or "Print" functions to save or print the PDF.


^ TOP

Data Layers

Highlighted Layers tab

Use the Layers options to select the data layers to display on the map. Click on the plus sign to the left of the layer to expand that layer. Click on the minus sign to collapse a layer. Use the scrollbar at the bottom of the column to see the full layer name. To see a layer or sublayer, make sure the check box to the left of the layer name is checked. When you select or modify a layer the map automatically updates. Some users with slower connections may need to wait for layer display to "catch up."

Not all layers are visible at all scales; the scale text next to a highlighted layer tells you the scales at which a layer is visible.


GTILO Base Map layers options

CITY AND HIGHWAY LABELS:

You can turn highway and city labels on and off at different scales.

map examples showing text labels on and off


SLIDO Reference Grid layer options

REFERENCE GRID LAYERS:

You can turn on and off U.S. Geological Survey 7.5-minute quadrangle and Public Land Survey System (PLSS) grids.

For more information, read the Background, Download Dataa, and Disclaimer pages.


GTILO Geothermal layers options

GEOTHERMAL DATA LAYERS:

Geothermal Wells (orange triangles): An inventory of geothermal exploration wells with temperature gradient information.
Geothermal Springs: An inventory of thermal springs (20°C and above) with tabulation of their water chemistry where available.
green dot - Low-Temperature Spring (< 25°C)
red dot - High-Temperature Spring (> 25°C)
yellow dot - Spring with unknown temperature
Geothermal Exploration Wells (blue stars): An inventory of geothermal test wells with temperature gradient information.
Low Temperature Wells (purple squares): A inventory of water chemistry and temperature gradient information for water wells (20°C and below).
Direct Use Areas (pink regions): Those areas that have conditions favorable for the discovery of thermal water of sufficient temperature for energy saving non-electrical purposes. The color in the legend is more saturated than the color in the map because the map layer is semi-transparent.

For more information, read the Background, Download Data, and Disclaimer pages.


GTILO Base Map layers options

OREGON BASE MAP LAYERS:

You can turn the Oregon base map on or off. Oregon base map layers include Oregon highways (interstates, U.S. routes, Oregon routes), local roads, oregon county borders, Oregon water bodies such as lakes and streams, Oregon city areas, oregon federal and states lands, Orthophotobase (at scales of 1:8,000 and 1:24,000) and terrain (a combination of hillshade and slope imagery used to create a topographic image of Oregon; at scales from 1:4,000,000 to 1:50,000). If a layer is not available at a certain scale, the layer name is grayed out.


GTILO Base Map layers options

REGIONAL BASE MAP LAYERS:

You can turn the regional base map layers on or off. Regional layers are not visible at all scales. Regional base map layers include highways (interstates and U.S. highways), Oregon county borders, U.S. border with Canada, borders of states adjoining Oregon, and water (blue) as a background.

^ TOP

Scale Tool

example Location Map with red box highlighting the current map extent

Click the horizontal bars on the zoom tool to zoom to a preset scale, or clock the plus or minus symbols to move up or down the preset scales:

1:8,000 (top rung of the scale tool)
1:24,000
1:50,000
1:100,000
1:250,000
1:500,000
1:1,000,000
1:2,000,000
1:4,000,000 (bottom rung of the scale tool)

^ TOP

Address Lookup

example Location Map with red box highlighting the current map extent

You can focus the map on a particular address. Enter the address and city in the fields. Click the Search button to center the map on that address.

^ TOP

Scale and Scale Bar

scale bar

The scale bar provides an approximate scale in miles for the map. To change the scale, use the Scale Tool.

^ TOP

Location Map

example Location Map with red box highlighting the current map extent

A red box on the small outline map of the area shows the extent of the large map area. You can click-and-drag in the location map area to change the focus of the large map.

^ TOP

FAQs - Frequently Asked Questions

"Why doesn't the map appear in my browser?"
If the map doesn't display, make sure your browser is JavaScript enabled and allows cookies from third-party sites. The map interface has not been tested on all browsers but should work on the most popular browsers.


"How do I zoom to a particular scale?"
You cannot zoom to a particluar scale. Use the scale tool to zoom to predetermined scales.


"How do I save or print a map image?"
Use the "Save As PDF" tool to view the currently displayed map image in a new browser window. Use that browser window's File > Print command to print or save the PDF file.


"Why doesn't the screen update when I click layers on and off?"
The map contains a lot of data. Sometimes the display needs time to "catch up" to the clicks. If the map will not refresh properly, try resetting the map (click the Reset button in the Tools area), or refreshing the page, or closing the browser window and then opening the map page again.