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.
Crater Lake Caldera and Rocky Fill. 1  the caldera is 5-6 miles in diameter. 2  the caldera is 3,900 feet deep. 3  since the eruption, material has fallen into the caldera from the walls, and from new volcanic activity inside the caldera.