Terrain (Search=>Filter=>General)
Use these fields to select caches based on the terrain rating of the cache. By default, all caches are selected (less than or equal to a terrain rating of 5.0). Use the first drop-down menu to select other terrain options. The terrain rating drop-down menu allows you to choose any of the standard terrain ratings between 1.0 and 5.0. GSAK displays a second terrain rating drop-down menu if you choose "Between (inclusive)" on the first drop-down menu.