Question: Ohio native William Gladstone Steel helped create Crater Lake National Park, where the lake is most famous for what?
Context: Crater Lake (Klamath: giiwas) is a caldera lake in south-central Oregon in the western United States.  It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity.  The lake partly fills a nearly 2148 ft -deep caldera that was formed around 7,700 (± 150) years ago Rim Village is the main area for tourist services in Crater Lake National Park in southern Oregon, United States.  It is located on the southwest rim of the caldera overlooking Crater Lake.  The National Park Service designed Rim Village to concentrate park services at a location that provided easy access to rim trails and view points.  Because of the unique rustic architecture of the Rim Village structures and the surrounding park landscape, the area was listed as Rim Village Historic District on the National Register of Historic Places in 1997. Crater Lake Lodge was built in 1915 to provide overnight accommodations for visitors to Crater Lake National Park in southern Oregon, USA.  The lodge is located on the southwest rim of the Crater Lake caldera overlooking the lake 1000 ft below.  The lodge is owned by the National Park Service, and is listed on the National Register of Historic Places. William Gladstone Steel (September 7, 1854 – October 21, 1934), called the "father of Crater Lake", referring to the creation of Crater Lake National Park in Oregon, United States.  A native of Ohio, he worked in the newspaper business before becoming a mail carrier.  He campaigned Congress for 17 years to designate Crater Lake as a national park. Wizard Island is a volcanic cinder cone which forms an island at the west end of Crater Lake in Crater Lake National Park, Oregon.  The top of the island reaches 6933 ft above sea level, about 755 ft above the average surface of the lake.  The cone is capped by a volcanic crater about 500 ft wide and 100 ft deep.  The crater was named the "Witches Cauldron" by William Gladstone Steel in 1885, who also gave Wizard Island its name at the same time. Munson Valley Historic District is the headquarters and main support area for Crater Lake National Park in southern Oregon.  The National Park Service chose Munson Valley for the park headquarters because of its central location within the park.  Because of the unique rustic architecture of the Munson Valley buildings and the surrounding park landscape, the area was listed as a historic district on the National Register of Historic Places (NRHP) in 1988.  The district has eighteen contributing buildings, including the Crater Lake Superintendent's Residence which is a U.S. National Historic Landmark and separately listed on the NRHP.  The district's NRHP listing was decreased in area in 1997. Longwanqun National Forest Park () is a nationally protected nature area in Huinan County, Jilin, China.  Geographically, it is part of the western Changbai Mountains.  A notable feature of the park are a group of volcanic crater lakes: the Sanjiaolong Crater Lake (三角龙湾, Triangle Dragon Crater Lake), Dalong Crater Lake (大龙湾, Big Dragon Crater Lake), Erlong Crater Lake (Medium Dragon Crater Lake), Xiaolong Crater Lake (Small Dragon Crater Lake), Donglong Crater Lake (East Dragon Crater Lake), Nanlong Crater Lake (South Dragon Crater Lake), Hanlong Crater Lake (Dry Dragon Crater Lake). Garfield Peak is a mountain peak on the south end of Crater Lake in Crater Lake National Park, Oregon.  The top of the peak reaches 7976 ft above sea level.  The peak has a 1000 ft elevation trail to the summit from the Crater Lake lodge, one of the most popular hiking sites surrounding the lake.  The 1.7 mile trail continues East toward Applegate peak (7976 ft high).  The peak is one of seven peaks on Crater Lake's rim to rise above 8000 ft . Crater Lake National Park is a United States National Park located in southern Oregon.  Established in 1902, Crater Lake National Park is the fifth-oldest national park in the U.S. and the only national park in Oregon.  The park encompasses the caldera of Crater Lake, a remnant of a destroyed volcano, Mount Mazama, and the surrounding hills and forests. The Sinnott Memorial Observation Station is a sheltered viewpoint built into the caldera cliff 900 feet above Crater Lake in southern Oregon, United States.  It is located near the Rim Village Visitor Center in Crater Lake National Park.  The structure includes a small natural history museum with exhibits that highlight the geologic history of Mount Mazama and the formation of Crater Lake.  The building was officially dedicated as the Nicholas J. Sinnott Memorial Observation Station and Museum; however, it is commonly known as the Sinnott Memorial Overlook or Sinnott Viewing Area.  It is architecturally significant because it was the first National Park Service building constructed specifically as a museum and the first structure built in Crater Lake National Park using rustic stone masonry construction.  It is listed on the National Register of Historic Places as Sinnott Memorial Building No. 67.
Answer: deep blue color