At Springville, Utah, an American has built a value pool 2.000.000 USD. The pool is called the 'Mountain', has five waterfalls, a small river and an underground tunnel for diving. It is 42 meters in length, 18 meters in width and up to 8 meters deep in some places, and has a capacity of 1 million. litres of water. A computer is responsible for controlling the water pumps and filters.