Dipyramid (Alaska)
Encyclopedia
Dipyramid is a pair of mountain peak
Mountain peak
A mountain peak is the highest part of a mountain; a mountaintop; the summit.Mountain Peak may also refer to:* Blue Mountain Peak, Jamaica* Hole in the Mountain Peak, Nevada, USA...

s in borough of Juneau, Alaska
Alaska
Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...

, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. It is a part of the Boundary Ranges
Boundary Ranges
The Boundary Ranges, also known in the singular and as the Alaska Boundary Range, are the largest and most northerly subrange of the Coast Mountains...

 of the Coast Mountains
Coast Mountains
The Coast Mountains are a major mountain range, in the Pacific Coast Ranges, of western North America, extending from southwestern Yukon through the Alaska Panhandle and virtually all of the Coast of British Columbia. They are so-named because of their proximity to the sea coast, and are often...

 in western North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

. The summit is 34 miles (54.7 km) north-northeast of the city of Juneau and 1 mile southeast of The Citadel. The peaks are 0.2 miles (322 m) miles apart.

Dipyramid was named by the Juneau Icefield Research Project in 1964, published by the United States Geological Survey
United States Geological Survey
The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

 in 1966, and entered into the Survey's Geographic Names Information System
Geographic Names Information System
The Geographic Names Information System is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer...

 on January 1, 2000.

One of two August 1999 collections of seismic
Seismology
Seismology is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. The field also includes studies of earthquake effects, such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, oceanic,...

 data on the nearby Demorest Glacier
Demorest Glacier
Demorest Glacier is a glacier which flows southeast into Whirlwind Inlet between Flint and Matthes Glaciers, on the east coast of Graham Land. Discovered by Sir Hubert Wilkins on a flight of December 20, 1928, and photographed from the air by the United States Antarctic Service in 1940. Charted...

was conducted near Dipyramid.

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