Help
Read this page if you have trouble navigating or understanding the map interface.
Tools |
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Tools Tab
^ TOPData Layers
![]() | 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. | |||||
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CITY AND HIGHWAY LABELS: You can turn highway and city labels on and off at different scales.
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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. |
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GEOTHERMAL DATA LAYERS:
For more information, read the Background, Download Data, and Disclaimer pages. |
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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. |
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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. |
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Scale Tool
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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) |
Address Lookup
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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. |
Scale and Scale Bar
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The scale bar provides an approximate scale in miles for the map. To change the scale, use the Scale Tool. |
Location Map
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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. |
FAQs - Frequently Asked Questions
"Why doesn't the map appear in my browser?" |
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"How do I zoom to a particular scale?" |
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"How do I save or print a map image?" |
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"Why doesn't the screen update when I click layers on and off?" |













