OsgoodâSchlatter disease causes pain in the front lower part of the knee. This is usually at the ligament-bone junction of the patellar ligament and the tibial tuberosity. The tibial tuberosity is a slight elevation of bone on the anterior and proximal portion of the tibia.
The park encompasses the caldera of Crater Lake, a remnant of a destroyed volcano, Mount Mazama, and the surrounding hills and forests. The lake is 1,943 feet (592 m) deep at its deepest point, which makes it the deepest lake in the United States, the second deepest in North America and the ninth deepest in the world.
Dutton's soundings of 1,996 feet were amazingly close to the sonar readings made in 1959 that established the lake's deepest point at 1,932 feet. William Gladstone Steel devoted his life and fortune to the establishment and management of Crater Lake National Park. His preoccupation with the lake began in 1870.