User: Tell me about Crater Lake National Park
Assistant: Crater Lake National Park, located in Oregon is an astonishing national park full of beautiful views and pristine natural surroundings.  The Park itself was officially founded in 1902 but prior to that it was considered a holy place by Native American Indians for hundreds of years.  The water in Crater Lake is a deep, dark blue and remains relatively cold year round.  Crater Lake is actually the remnant of an imploded volcano that filled with water of the centuries and is in fact, the deepest lake in the United States.   The caldera itself is 6 miles by 5 miles and more than a half mile deep.  The rim offers some spectacular views of the lake itself and surrounding caldera formation.