The Crater Lake was formed around 7,700 (± 150) years ago by the collapse of the Mazama volcano. It has a surface area of 53 square kilometres and the lake's maximum depth has been measured at 594 metres.
USA 1934, Crater Lake.
Bhutan 1991, Walt Disney
Crater Lake & Wizard Island.
USA 2006, Crater Lake.
The stamp was issued in the series "Wonders of America".
Marshall Islands 2016, Crater Lake National Park.
The stamp was issued in the series "National Park Service’s Centennial".