1. Using the Lake Scan Viewer software, select the Lake that you are interested in from those listed the lake selection buttons (blue) at the left side of the screen (a new Lake will be added when you order the first set of IMAGES of that Lake.)      2. A picture of that lake should be displayed with  different color tracks around and inside it. Note : The colors are used over again but generally, a SCAN SET should be of a color different than either of the SCAN SETS adjacent to it. Each different color identifies a SCAN SET consisting of line segments seperated by tick marks that indicate the area of lake bottom covered by a single scan (picture).  If any part of the lake doesn't have  a colored track then, that section of the lake has not been scanned yet.  The example here is Charles Mill Lake (Southern section) in Ohio.

3. After deciding which section of the lake you are interested in, select an area of the lake bottom by left clicking the line segment that brackets the portion of the bottom you want to look at (above). 4. The Image for that segment of the lake bottom will be displayed on your screen showing you what is under the water. Click on any feature in the image and its Latitude and Longitude will be displayed for you (right).   Simply plug the numbers into your GPS and cruise to that spot on the lake OR, use the size / distance tool to get a compass bearing and distance between objects under the water and points on the shoreline. Then, position yourself on that point of land and cast your line in the direction of the compass bearing and for the distance given.