Instructions for drawing on map:
To Pan, click on the Pan radio button, then click on any spot within the
To Zoom, select the Zoom factor and whether you want to Zoom In or
Zoom Out, then click on your area of interest.
To Define a Point to search on, click on the Point radio button, then
click on any spot within the map.
To Define a Range to search on, click on the Range radio button, then
click on the upper left portion of your area of interest. After the document
reloads, click on the lower right portion of your area.
To Add or subtract map layers, click the on/off buttons provided for each layer. Grid Increment and map size can also be changed to your preferences.
Note: Preview images are resampled from the original data and
may not accurately represent the full resolution product. For more information
"Overview of GLIS Preview Image Strategies".