Gold Digger Achievement

Mound Caches are small discolored patches of land that you can dig up to look for treasure. Obviously you will need a shovel in your inventory to do so. Normally a single mound cache will have a few dig spots depending on its size. There is one in Grackle near a turned over wagon that has three spots on it. If you dig it up but do not loot it, then fill the holes back in, leave town, and repeat this process you *should* be able to get the achievement right at the beginning of the game with no trouble. This doesn't seem to work for everyone though, so dig up the spots here and continue to look for these mounds in other towns and map areas. Below is what they look like.