Baltic Hills is a natural Wisconsin quarried castle rock style limestone veneer.  The stone is dolomitic limestone quarried from the Niagara Escarpment.  An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion.  The Niagara Escarpment runs east/west from Wisconsin through the upper peninsula of Michigan and Ontario ending in New York with Niagara Falls.  Baltic Hills has cooler tones with hints of gold.  The stone comes out of the ground in unusually large sheets (due to its hardness) which are then split into rectangles with a hydraulic press under 300 tons of pressure.  The rectangular blocks of stone are then sawed into thin veneer.