The Shihmen Reservoir is 16 kilometers long. This may seem a lot, but many dams of the same height in Canada or the USA hold back lakes one or two hundred kilometers long, with capacities greater than all Taiwan's 30-odd reservoirs put together.
石門水庫湖面長十六公里，看來「遼闊」，但在加拿大、美國，同樣壩高，蓄水長度達一、二百公里，庫容量可以超過全台灣三十多個水庫的總合。