Photos: A water-filled crater

Unlike Lake Tahoe, which at a depth of 1,700 feet rivals that of Crater Lake's 1,932 feet, the park is largely unpopulated and un-commercialized. The lone lodge at the rim, called the Crater Lake Lodge, is nearly 100 years old and has only 71 rooms. The historic lodge was redone 10 years ago, so it's now as pristine as the lake, but prospective tourists often have to reserve a room years in advance, or camp down the mountain.