Unified Interior Regions

Alaska

The Alaska Region represents a resource-rich, dynamic landscape shaped by volcanos, earthquakes, major rivers, and glaciers. Here, we conduct research to inform management of Alaska’s extensive natural resources, inform national Arctic energy policy, and provide scientific information to help others understand, respond to, and mitigate impacts from natural hazards.

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Filter Total Items: 208
Date published: July 19, 2018
Status: Active

Science for Oil and Gas Leasing-related Decisions

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is...

Date published: July 10, 2018
Status: Active

Remotely Sensed Discharge

River discharge is an important component of the water cycle, and an accurate accounting of streamflow can be accomplished by monitoring the spatial and temporal variations in river discharge. The U.S. Geological Survey is actively pursuing remote-sensing platforms to compute river discharge using a combination of satellite-, high altitude-, drone-, and fixed-based platforms to directly...

Date published: June 29, 2018
Status: Active

Walrus Media/Contacts

If you have questions about walrus research or media inquiries regarding the USGS Alaska Science Center please contact Yvette Gillies or Steven Sobieszczyk.

Date published: June 29, 2018
Status: Active

Polar Bear Media/Contacts

If you have questions about research or media inquiries regarding the USGS Alaska Science Center please contact Yvette Gillies or Paul Laustsen.

Date published: June 18, 2018
Status: Active

Glaciers and Climate Project

Scientists with the Glaciers and Climate Project study many of the pertinent impacts that glaciers present to society, such as altering hydrologic cycles, contributing to sea-level rise, and creating environmental hazards. 

Contacts: Louis Sass, III
Date published: June 18, 2018
Status: Completed

Mountain Permafrost, Climate Change, and Rock Avalanches in Glacier Bay National Park, Alaska

Release Date: JUNE 18, 2018

We usually hear about landslides and avalanches that are caused by large amounts of rainfall, the shaking from earthquakes, or a volcanic eruption, but we may be hearing more about avalanches caused by the (seemingly innocuous) melting of ice in the coming years.

Date published: June 18, 2018
Status: Active

Alaska Resource Data File

The Alaska Resource Data File (ARDF) site provides descriptions of mines, prospects, and mineral occurrences for individual U.S. Geological Survey 1:250,000-scale quadrangles in Alaska.

Date published: June 11, 2018
Status: Active

Alaska Databases and Information Analysis

We provide GIS and database support for Alaska-based research projects, including database design, data capture, and maintenance, GIS analysis and display, and production of datasets and metadata for publication and data releases.

Contacts: Nora B Shew
Date published: May 22, 2018
Status: Active

Tectonic and Metallogenic Evolution of the Yukon-Tanana Upland, Alaska

The Yukon-Tanana upland in eastern interior Alaska is a geologically complex block containing deposits of base-metal, platinum-group-element, and gold-silver-copper mineralization. It also hosts numerous mineral systems that are known or suspected to contain critical minerals.

Date published: May 22, 2018
Status: Active

Petrology, Tectonic Setting, and Potential for Concentration of Rare Earth Elements (REE) and High Field Strength Elements (HFSE) in the High-K Darby and Kachauik Plutons, Seward Peninsula, Alaska

One of the geologic environments that host rare earth and other critical and strategic element deposits are alkaline intrusive rocks.

Date published: May 22, 2018
Status: Completed

Metallogeny and Tectonics of the Lake Clark and Neacola Mountains Region, South-central Alaska

Alaska hosts a well-documented belt of ore deposits that lies roughly parallel to the Alaska Range, beginning at the Alaska Peninsula in the southwest, continuing up through the Fairbanks Mining District in the north, and curving back into the Tintina Gold Belt on its eastern end. Known mineral prospects and occurrences include porphyry copper, intrusion-related gold, volcanogenic massive...

Date published: May 22, 2018
Status: Active

GIS Prospectivity Analysis for Critical Minerals in Ore-Forming Systems in Alaska

Alaska is dominated by a history of tectonic events that foster mobilization and concentration of a wide variety of mineral commodities that are critical to the US economy and are vital to national defense, renewable-energy, and emerging electronics technologies.

Filter Total Items: 229
Date published: January 22, 2020

Argos Satellite Tracking Data for Tundra Swans (Cygnus columbianus) - Processed Data

This metadata document describes the data contained in the "processedData" folder of this data package. This data package contains all data collected by the Argos System from 50 satellite transmitters attached to Tundra Swans on their breeding range in arctic and western Alaska, 2008. The raw data were processed to accomplish two goals: flag implausible location estimates and decode raw s

Date published: January 14, 2020

Influenza A Virus Persistence Data from an Urban Wetland in Anchorage, Alaska, 2018-2019

This dataset is three tables with details of samples and aliquots of waterfowl feces deposited in filtered surface water collected from an urban waterbody in Anchorage, Alaska in 2018-2019. Sample vials were submerged underwater in the same waterbody from which the samples were collected and the samples were tested for the presence and viability of influenza A virus. Temperature data and water...

Date published: January 10, 2020

Data from Common Murre Die-off Surveys and Necropsies Following the North Pacific Marine Heatwave, 2015-2016

These data are in two tables relating to a die-off of Common Murres in the north Pacific, 2015-2016. The tables provide: 1) beach survey locations, date, time, distance surveyed (kilometers), and number of Common Murre carcasses observed during surveys conducted along the coastline of Alaska to document the 2015-2016 die-off of Common Murres coincident with the North Pacific mar

Date published: January 1, 2020

U-Pb Isotopic Data and Ages of Detrital Zircon Grains, Whole Rock Major and Trace-element Geochemistry, and Whole Rock Isotopic Data from Selected Rocks from the Western Alaska Range, Medfra area, and Livengood area, Alaska.

This data release contains 3 data sets, U-Pb isotopic data and associated
ages of detrital zircon grains for 27 sedimentary rocks, whole rock major
and trace-element geochemistry for 15 igneous or phosphatic
rock samples, and whole rock Sr, Nd, and Pb isotopic data for 6 igneous
rock samples. The samples were collected from multiple localities across
Alaska as...

Date published: December 27, 2019

National assessment of shoreline change: A GIS compilation of vector shorelines and associated shoreline change data for the north coast of Alaska, Icy Cape to Cape Prince of Wales

USGS is conducting an analysis of historical shoreline changes along the open-ocean sandy shores of the conterminous United States and parts of Hawaii, Alaska, and the Great Lakes.

Date published: December 20, 2019

Tabular Input/Output Data and Model Files for 19 Two-Dimensional Hydraulic Models for Streambed Scour Evaluations at Selected Bridge Sites in Alaska, 2016-2017

This data release includes tabular surveyed and interpolated elevation data, the processed computational mesh, and model output data used in scour evaluations. The methods of deriving these datasets and using them to calculate scour are described in the associated Scientific Investigations Report "Scour evaluations and conditions at selected bridge sites in Alaska, 2016-2017”. Thi

Date published: December 20, 2019

DNA Microsatellite Markers for Northern Fulmar (Fulmaris glacialis) and Cross-species Amplification in Select Seabird Species

This data set is comprised of one table with sampling information and allele sizes for 69 individual Northern Fulmars (Fulmarus glacialis) from Chagulak Island, Alaska and Hafnarey Island, Iceland. Fulmar allele sizes are provided for 10 previously published and 26 novel microsatellite loci. Additionally, allele sizes for the 26 microsatellite loci developed in this study are included f

Date published: December 2, 2019

Argos Satellite Tracking Data for Yellow-billed Loons (Gavia adamsii) - Raw Data

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 92 satellite transmitters attached to adult Yellow-billed Loons on their breeding range in Arctic Alaska and Canada, 2002-2017. Five data files are included in the "rawData" folder of this data package. Two data files %2

Date published: December 2, 2019

Argos Satellite Tracking Data for Yellow-billed Loons (Gavia adamsii) - Processed Data

This metadata document describes the data contained in the "processedData" folder of this data package. This data package contains all data collected by the Argos System from 92 satellite transmitters attached to adult Yellow-billed Loons on their breeding range in Arctic Alaska and Canada, 2002-2017. The raw data were processed to accomplish two goals: flag implausible location estimates

Date published: November 12, 2019

Glacier-Wide Mass Balance and Compiled Data Inputs: Juneau Icefield Glaciers

Since the 1940s, the Juneau Icefield Research Program (JIRP) has been measuring surface mass balance on the Juneau Icefield. This is the longest ongoing program of its kind in North America. The program nominally occurs between late June and late August, traversing between Juneau, Alaska and Atlin, British Columbia. JIRP has examined the surface mass balance of the Juneau Icefield sin

Date published: November 12, 2019

Spectacled Eider (Somateria fischeri) Microsatellite and Mitochondrial DNA Data, 2014-2018, Alaska and Russia.

This data set describes nuclear microsatellite genotypes derived from ten autosomal loci (Aph8, Aph16, Cmo7, Cmo9, Hhi5, Sfi10, Smo4, Smo6, Smo8, Smo12) and nucleotide sequence data derived from one mitochondrial DNA locus (control region). A total of 262 Spectacled Eiders were examined for this study. Samples were collected at Indigirka and Chaun River Deltas, Russia%

Date published: November 8, 2019

Physical, Chemical, and Invertebrate Data from Chipp North Pond Manipulations, North Slope, Alaska, 2013

These data are in three tables relating to a series of ponds, visited weekly over the summer of 2013, in the Chipp River Basin on the Arctic Coastal Plain of northern Alaska. The tables provide: 1) location and description of each of the ponds, 2) physical information on pond characteristics (area, volume, and temperature), water chemistry (electrical conductivity, disso

Filter Total Items: 142
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Year Published: 2009

Does winter region affect spring arrival time and body mass of king eiders in northern Alaska?

Events during the non-breeding season may affect the body condition of migratory birds and influence performance during the following breeding season. Migratory birds nesting in the Arctic often rely on endogenous nutrients for reproductive efforts, and are thus potentially subject to such carry-over effects. We tested whether king eider (...

Powell, Abby N.; Oppel, Steffen

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Year Published: 2008

Challenges in making a seismic hazard map for Alaska and the Aleutians

We present a summary of the data and analyses leading to the revision of the time-independent probabilistic seismic hazard maps of Alaska and the Aleutians. These maps represent a revision of existing maps based on newly obtained data, and reflect best current judgments about methodology and approach. They have been prepared following the...

Freymueller, J.T.; Wesson, R.L.; Boyd, O.S.; Mueller, C.S.; Frankel, A.D.
Challenges in making a seismic hazard map for Alaska and the Aleutians; 2008; Article; Journal; Geophysical Monograph Series: Active Tectonics and Seismic Potential of Alaska; Wesson, R. L.; Boyd, O. S.; Mueller, C. S.; Frankel, A. D.

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Year Published: 2007

Landscape geochemistry near mineralized areas of eastern Alaska: Chapter H in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

The Pogo lode gold deposit was discovered in eastern Alaska in the early 1990s and provided the opportunity to study elemental distribution and mobility in the natural environment prior to mine development. Studying mineralized systems prior to mining allows us to compare the natural biogeochemical signature in mineralized versus...

Wang, Bronwen; Gough, Larry P.; Wanty, Richard B.; Crock, James G.; Lee, Gregory K.; Day, Warren; Vohden, Jim
Landscape geochemistry near mineralized areas of eastern Alaska: Chapter H in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-H; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Wang, Bronwen; Gough, Larry P.; Wanty, Richard B.; Crock, James G.; Lee, Gregory K.; Day, Warren C.; Vohden, Jim

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Year Published: 2007

Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon: Chapter A in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

More than 50 million ounces of lode gold resources have been defined in the previous 15 years throughout accreted terranes of interior Alaska and in adjacent continental margin rocks of Yukon. The major deposits in this so-called Tintina Gold Province formed around 105 to 90 million years ago in east-central Alaska and Yukon, and around 70...

Gough, Larry P.; Day, Warren; Goldfarb, Richard J.; Marsh, Erin E.; Hart, Craig J.R.; Mair, John L.; Miller, Marti L.; Johnson, Craig
Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon: Chapter A in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-A; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Goldfarb, Richard J.; Marsh, Erin E.; Hart, Craig J.R.; Mair, John L.; Miller, Marti L.; Johnson, Craig

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Year Published: 2007

Aufeis accumulations in stream bottoms in arctic and subarctic environments as a possible indicator of geologic structure: Chapter F in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

Thick accumulations of ice, called “aufeis,” form during winter along stream and river valleys in arctic and subarctic regions. In high-gradient alpine streams, aufeis forms mostly as a result of ground-water discharge into the stream channel. The ice occludes this discharge, perturbing the steady-state condition, and causing an incremental...

Gough, Larry P.; Day, Warren; Wanty, Richard B.; Wang, Bronwen; Vohden, Jim; Day, Warren; Gough, Larry P.
Aufeis accumulations in stream bottoms in arctic and subarctic environments as a possible indicator of geologic structure: Chapter F in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-F; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Wanty, Richard B.; Wang, Bronwen; Vohden, Jim; Day, Warren C.; Gough, Larry P.

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Year Published: 2006

Hydrography and circulation of ice-marginal lakes at Bering Glacier, Alaska, U.S.A.

An extensive suite of physical oceanographic, remotely sensed, and water quality measurements, collected from 2001 through 2004 in two ice-marginal lakes at Bering Glacier, Alaska-Berg Lake and Vitus Lake-show that each has a unique circulation controlled by their specific physical forcing within the glacial system. Conductivity profiles from Berg...

Josberger, E.G.; Shuchman, R.A.; Meadows, G.A.; Savage, S.; Payne, J.
Hydrography and circulation of ice-marginal lakes at Bering Glacier, Alaska, U.S.A.; 2006; Article; Journal; Arctic, Antarctic, and Alpine Research; Josberger, E. G.; Shuchman, R. A.; Meadows, G. A.; Savage, S.; Payne, J.

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Year Published: 2005

Resource inventory of marine and estuarine fishes of the West Coast and Alaska: A checklist of North Pacific and Arctic Ocean species from Baja California to the Alaska - Yukon border

This is a comprehensive inventory of the fish species recorded in marine and estuarine waters between the Alaska–Yukon Territory border in the Beaufort Sea and Cabo San Lucas at the southern end of Baja California and out about 300 miles from shore. Our westernmost range includes the eastern Bering Sea and Aleutian Islands. In addition, we have...

Love, Milton S.; Mecklenburg, Catherine W.; Mecklenburg, T. Anthony; Thorsteinson, Lyman K.

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Year Published: 2004

Ichthyophoniasis: An emerging disease of Chinook salmon in the Yukon River

Before 1985, Ichthyophonus was unreported among Pacific salmon Oncorhynchus spp. from the Yukon River; now it infects more than 40% of returning adult Chinook salmon O. tshawytscha. Overall infection prevalence reached about 45% in the Yukon River and about 30% in the Tanana River between 1999 and 2003. Mean infection prevalence was greater in...

Kocan, R.; Hershberger, P.; Winton, J.

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Year Published: 2004

Surface rupture and slip distribution of the Denali and Totschunda faults in the 3 November 2002 M 7.9 earthquake, Alaska

The 3 November 2002 Denali fault, Alaska, earthquake resulted in 341 km of surface rupture on the Susitna Glacier, Denali, and Totschunda faults. The rupture proceeded from west to east and began with a 48-km-long break on the previously unknown Susitna Glacier thrust fault. Slip on this thrust averaged about 4 m (Crone et al., 2004). Next came...

Haeussler, Peter J.; Schwartz, David P.; Dawson, Timothy E.; Stenner, Heidi D.; Lienkaemper, James J.; Sherrod, Brian; Cinti, Francesca R.; Montone, Paola; Craw, Patricia; Crone, Anthony J.; Personius, Stephen F.
Surface rupture and slip distribution of the Denali and totschunda faults in the 3 November 2002 M 7.9 earthquake, Alaska; 2004; Article; Journal; Bulletin of the Seismological Society of America; Haeussler, P. J.; Schwartz, D. P.; Dawson, T. E.; Stenner, H. D.; Lienkaemper, J. J.; Sherrod, B.; Cinti, F. R.; Montone, P.; Craw, P. A.; Crone, A. J.; Personius, S. F.

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Year Published: 2000

Potential seismic hazards and tectonics of the upper Cook Inlet basin, Alaska, based on analysis of Pliocene and younger deformation

The Cook Inlet basin is a northeast-trending forearc basin above the Aleutian subduction zone in southern Alaska. Folds in Cook Inlet are complex, discontinuous structures with variable shape and vergence that probably developed by right-transpressional deformation on oblique-slip faults extending downward into Mesozoic basement beneath the...

Haeussler, Peter J.; Bruhn, Ronald L.; Pratt, Thomas L.
Potential seismic hazards and tectonics of the upper Cook Inlet basin, Alaska, based on analysis of Pliocene and younger deformation; 2000; Article; Journal; Bulletin of the Geological Society of America; Haeussler, P. J.; Bruhn, R. L.; Pratt, T. L.

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Year Published: 1990

National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...

Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.
Attribution: Water, Central Midwest Water Science Center, Dakota Water Science Center, , , Kansas Water Science Center, Minnesota Water Science Center, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, , Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Water Resources, Water Availability and Use Science Program, , , Region 4: Mississippi Basin, Region 6: Arkansas-Rio Grande-Texas-Gulf, , Region 7: Upper Colorado Basin, Region 1: North Atlantic-Appalachian, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, United States of America
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

Filter Total Items: 1,159
Beaver dam crossing mainstem of Rabbit Creek near the headwaters, Cape Krusenstern National Monument
August 15, 2019

Beaver dam crossing mainstem of Rabbit Creek near the headwaters

Beaver dam crossing mainstem of Rabbit Creek near the headwaters, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument
August 14, 2019

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Measuring the amount of water impounded by a beaver dam on Rabbit Creek, Cape Krusenstern National Monument.
August 14, 2019

Measuring the amount of water impounded by a beaver dam

 

Measuring the amount of water impounded by a beaver dam on Rabbit Creek, Cape Krusenstern National Monument. 

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument
August 14, 2019

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver swimming near dam on Rabbit Creek, Cape Krusenstern National Monument
August 14, 2019

Beaver swimming near dam on Rabbit Creek, Cape Krusenstern

Beaver swimming near dam on Rabbit Creek, Cape Krusenstern National Monument

Arctic smelt (Osmerus dentex) captured along the Beaufort Sea coastline in Alaska
August 13, 2019

Arctic smelt (Osmerus dentex) captured along the Beaufort Sea

Arctic smelt (Osmerus dentex) captured along the Beaufort Sea coastline in Alaska. This species is a close relative of rainbow smelt (Osmerus mordax)

Dolly Varden (Salvelinus malma) char captured in brackish water along the Beaufort Sea coastline.
August 13, 2019

Dolly Varden (Salvelinus malma) char captured in brackish water

Dolly Varden (Salvelinus malma) char captured in brackish water along the Beaufort Sea coastline. Dolly Varden are an important subsistence fish across their range.

Arctic cisco (Coregonus autumnalis) captured along the Beaufort Sea coastline in Alaska
August 13, 2019

Arctic cisco (Coregonus autumnalis) captured along the Beaufort Sea

Arctic cisco (Coregonus autumnalis) captured along the Beaufort Sea coastline in Alaska.

Arctic smelt (Osmerus dentex) captured along the Beaufort Sea coastline in Alaska
August 13, 2019

Arctic smelt (Osmerus dentex) captured along Beaufort Sea

Arctic smelt (Osmerus dentex) captured along the Beaufort Sea coastline in Alaska. This species is a close relative of rainbow smelt (Osmerus mordax).

Emaciated Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Emaciated Short-tailed Shearwater carcass in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcass in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcasses on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Filter Total Items: 284
USGS science for a changing world logo
September 10, 2015

MENLO PARK, Calif. — Some of the inner workings of Earth’s subduction zones and their “megathrust” faults are revealed in a paper published today in the journal “Science.” U.S. Geological Survey scientist Jeanne Hardebeck calculated the frictional strength of subduction zone faults worldwide, and the stresses they are under.

Image: Valley of Ten Thousand Smokes, Alaska
September 3, 2015

Two community events about monitoring old volcanic ash resuspended by high winds are scheduled next week in the City of Kodiak and in Larsen Bay, Alaska.

Probing the snow pack at the highest point in North America
September 2, 2015

A new, official height for Denali has been measured at 20,310 feet, just 10 feet less than the previous elevation of 20,320 feet which was established using 1950’s era technology.

collage of scientists conducting science related to each mission are
August 10, 2015

ANCHORAGE, Alaska — In the 20th century, Baranof Island in Southeastern Alaska has drawn attention for its gold, chrome and nickel deposits, timber industry, potential activity of the dormant Mount Edgecumbe volcano, and for numerous commercially developed hot springs.

On top of North America!
July 23, 2015

A team of four climbers has recently returned from the highest point in North America with new survey data to determine a more precise summit height of Mount McKinley. It is anticipated the new elevation finding will be announced in late August.

Image: U.S. Fish and Wildlife Service Vessel Seen Through Bird Flock
July 16, 2015

The U.S. Geological Survey today released the North Pacific Pelagic Seabird Database — a massive online resource compiling the results of 40 years of surveys by biologists from the United States, Canada, Japan and Russia. The database documents the abundance and distribution of 160 seabird and 41 marine mammal species over a 10 million-square-mile region of the North Pacific.

Image: Long-Range Radar Station and Landfill
July 1, 2015

ANCHORAGE, Alaska — In a new study published today, scientists from the U.S. Geological Survey found that the remote northern Alaska coast has some of the highest shoreline erosion rates in the world. Analyzing over half a century of shoreline change data, scientists found the pattern is extremely variable with most of the coast retreating at rates of more than 1 meter a year.

Polar Bear Ecoregions: In the Seasonal Ice Ecoregion
June 30, 2015

Greenhouse gas emissions remain the primary threat to the preservation of polar bear populations worldwide. This conclusion holds true under both a reduced greenhouse gas emission scenario that stabilizes climate warming and another scenario where emissions and warming continue at the current pace, according to updated U.S. Geological Survey research models.

Mount McKinley landscape
June 15, 2015

A new GPS survey of Mount McKinley, the highest point in North America, will update the commonly accepted elevation of McKinley’s peak, 20,320 ft. The last survey was completed in 1953.

Map of basement domains
April 23, 2015

A map showing the many different pieces of Earth’s crust that comprise the nation’s geologic basement is now available from the U.S. Geological Survey.