Three Fingered Jack is a summit of a shield volcano of the Cascade Range in the U.S. state of Oregon. Formed during the Pleistocene epoch, the mountain consists mainly of basaltic andesite lava and was heavily glaciated in the past. While other Oregon volcanoes that were heavily glaciated—such as Mount Washington and Mount Thielsen—display eroded volcanic necks, Three Fingered Jack's present summit is a comparatively narrow ridge of loose tephra supported by a dike only 10 feet (3.0 m) thick on a generally north–south axis. Glaciation exposed radiating dikes and plugs that support this summit. The volcano has long been inactive and is highly eroded.
The Support Force Glacier is a major glacier in the Pensacola Mountains, draining northward between the Forrestal Range and Argentina Range to the Filchner-Ronne Ice Shelf.
The Cook Mountains is a group of mountains bounded by the Mulock and Darwin glaciers in Antarctica. They are south of the Worcester Range and north of the Darwin Mountains and the Britannia Range.
Tucker Glacier is a major valley glacier of Victoria Land, Antarctica, about 90 nautical miles long, flowing southeast between the Admiralty Mountains and the Victory Mountains to the Ross Sea. There is a snow saddle at the glacier's head, just west of Homerun Range, from which the Ebbe Glacier flows northwestward.
Lambert Glacier is a major glacier in East Antarctica. At about 80 km (50 mi) wide, over 400 km (250 mi) long, and about 2,500 m (8,200 ft) deep, it is the world's largest glacier. It drains 8% of the Antarctic ice sheet to the east and south of the Prince Charles Mountains and flows northward to the Amery Ice Shelf. It flows in part of Lambert Graben and exits the continent at Prydz Bay.
Shirase Glacier is a large glacier entering Havsbotn, the bay that forms the head of Lutzow-Holm Bay in Antarctica. The area occupied by this feature was first mapped as a bay and named Instefjorden by the Lars Christensen Expedition (LCE) of 1936–37. Surveys by Japanese Antarctic Research Expedition (JARE) of 1957–62, revealed the large glacier in this position which they named after Lt. Nobu Shirase, leader of the Japanese Antarctic Expedition of 1911–12. Its nearby features were also charted and named by JARE unless otherwise noted.
Foundation Ice Stream is a major ice stream in the Pensacola Mountains of Antarctica. The ice stream drains northward for 150 nautical miles along the west side of the Patuxent Range and the Neptune Range to enter the Ronne Ice Shelf westward of Dufek Massif.
Grinnell Glacier is in the heart of Glacier National Park in the U.S. state of Montana. The glacier is named for George Bird Grinnell, an early American conservationist and explorer, who was also a strong advocate of ensuring the creation of Glacier National Park. The glacier is in the Lewis Range and rests on the north flank of Mount Gould at an altitude averaging 7,000 feet (2,100 m), in the Many Glacier region of the park.
Blackfoot Glacier is the second largest of the remaining 25 glaciers in Glacier National Park, Montana. Blackfoot Glacier is just to the north of Blackfoot Mountain and near Jackson Glacier. The glacier was most recently measured in 2015 at 370 acres (1.5 km2), yet when first documented in 1850, the glacier also included the now separate Jackson Glacier and together, they covered 1,875 acres (7.59 km2). In 1850, there were an estimated 150 glaciers in the park. Glaciologists have stated that by the year 2030, all the glaciers in the park may disappear. However, under a modest increase in overall carbon dioxide levels, some glaciers will remain until the late 23rd century.
The Mariner Glacier is a major glacier over 60 nautical miles long, descending southeast from the plateau of Victoria Land, Antarctica, between Mountaineer Range and Malta Plateau, and terminating at Lady Newnes Bay, Ross Sea, where it forms the floating Mariner Glacier Tongue.
Seven Fingered Jack is a mountain in the North Cascades in the U.S. state of Washington. It is located at the north end of the Entiat Mountains, a sub-range of the Cascade Range. It is part of a three-peak group called the Entiat Cirque which includes Mount Maude and Mount Fernow. Seven Fingered Jack is about 4 miles (6.4 km) south of Holden. The peak is in the Glacier Peak Wilderness of Wenatchee National Forest.
Logan Glacier is in Glacier National Park in the U.S. state of Montana. The glacier is situated in a cirque to the northeast of Mount Logan. Just east of the Continental Divide, Logan Glacier is northwest of Red Eagle Glacier. Estimated in 2005 to cover an area of 75 acres (0.30 km2), Logan Glacier covered almost 125 acres (0.51 km2) in 1966, a reduction in area of 40 percent in about 40 years. Comparing images of the glacier taken in 1914 with those from 2009, indicates that the glacier has experienced extensive retreat.
Balish Glacier is a glacier, 18 nautical miles (33 km) long, flowing north from the Soholt Peaks to enter Splettstoesser Glacier just northeast of Springer Peak, in the Heritage Range, Ellsworth Mountains. It was mapped by the United States Geological Survey from surveys and from U.S. Navy air photos, 1961–66, and was named by the Advisory Committee on Antarctic Names for Commander Daniel Balish, Executive Officer of U.S. Navy Squadron VX-6 during Operation Deep Freeze 1965, and Commanding Officer in 1967.
The Langhovde Hills are an extensive area of bare rocky hills along the eastern shore of Lützow-Holm Bay, in Queen Maud Land, Antarctica. They are located just south of Hovde Bay. They were mapped by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition (LCE) in 1936–37, and named descriptively Langhovde. Many other features were mapped from surveys and air photos by the Japanese Antarctic Research Expedition (JARE) of 1957–62, and subsequently named by JARE Headquarters.
Guerrero Glacier is a glacier about 7 nautical miles (13 km) long in Doyran Heights, draining from the southeast slopes of Mount Havener southwest of Beloslav Peak to the south side of Taylor Spur, in the southeast part of the Sentinel Range, Ellsworth Mountains, Antarctica. It was first mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1957–59, and was named by the Advisory Committee on Antarctic Names for John F. Guerrero, a meteorologist at South Pole Station in 1957.
Hansen Glacier is a tributary glacier 10 nautical miles long, flowing northeast from Mount Tuck between Veregava Ridge and Doyran Heights to join Dater Glacier west of Dickey Peak, in the Sentinel Range of the Ellsworth Mountains in Antarctica.
Mendeleyev Glacier is a glacier, 10 nautical miles (19 km) long, draining northeast through the northern outcrops of the Payer Mountains, in Queen Maud Land, Antarctica. It was mapped from air photos and surveys by the Soviet Antarctic Expedition, 1960–61, and named after Russian chemist Dmitri Mendeleev, whose surname may also be transliterated as "Mendeleyev".
Hudman Glacier is a glacier draining south of Mount Landolt between Marze Peak and Miller Peak in Petvar Heights at the south end of the Sentinel Range, in the Ellsworth Mountains of Antarctica, flowing south-southeast to Minnesota Glacier. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1957–59, and was named by the Advisory Committee on Antarctic Names for Captain Rayburn A. Hudman, United States Marine Corps, who died in the crash of a Lockheed P2V-2n Neptune, modified for extreme range, flying in sub zero temperatures and Ski equipped for landing on the Ice runways at McMurdo Sound Antarctica on October 18, 1956.
Kornicker Glacier is a glacier draining northeastwards from the cirque bounded by Mount Liptak, Mount Southwick, Mount Milton and Mount Mullen in the southern Sentinel Range of the Ellsworth Mountains in Antarctica. The glacier flows along the northwestern side of Petvar Heights and merges with the terminus of the southeast-flowing Thomas Glacier as both glaciers emerge from the range.
