The ancient landscape looked nothing like what humans are familiar with today. In fact, the landscape of the past may have been entirely unrecognizable due to the way major landmarks are formed. Glacial activity formed many of the large landmarks with which you are familiar, including the Great Lakes. Lake Michigan was formed by a single massive glacier that left huge chunks of ice in its path, and those chunks were eventually buried by sediment and left to melt over time. Indigo H2O is taken from one of these aquifers left over after the formation of Lake Michigan. Indigo H2O has an impressive mineral content thanks to the time the water spends in the aquifer before it is collected. Calcium, potassium, and magnesium are all found in sufficient quantities in the water, and even though it undergoes extraneous filtration and purification after it is collected, the mineral content is left untouched.