Crater Lake National Park established

May 22, 1902

Theodore Roosevelt authorized the creation of Crater Lake National Park in 1902 to protect this unique lake and its surrounding forests.

Theodore Roosevelt authorized the creation of Crater Lake National Park in 1902 to protect this unique lake and its surrounding forests.

Located in Oregon, Crater Lake was formed over 7000 years ago when the top of Mount Mazama collapsed into the mountain, creating a great bowl in which water collected over time. There are no streams running into or out of the lake.


Crater Lake reaches a depth of over 1,900 feet, making it is the deepest lake in the United States, and one of the deepest lakes in the world. It is six miles wide at its widest point and covers approximately 20 square miles. The walls of the ancient volcano that surround the lake have eroded unevenly over thousands of years, creating remarkable shapes and colors that make the area a scenic wonder.

Crater Lake National Park is over 160,000 acres in size and receives average over 530 inches of snow each year. Hiking, camping, and fishing are popular activities at the park, primarily from July through September.