Unified Interior Regions

Montana

States L2 Landing Page Tabs

Filter Total Items: 187
Wide eyed elk in a feedgrounds.
Date Published: April 9, 2016
Status: Active

Ecology of Elk on Department of Interior Lands in Southwest Wyoming

Between 2005 and 2010, we radio- collared 61 female elk (Cervus elaphus) on Fossil Butte National Monument and 12 female elk near Cokeville, Wyoming, slightly northwest of the Monument, all from the West Green River herd. We are using the 209,250 locations from these elk to identify seasonal distribution patterns, evaluate habitat use, and assess factors influencing the timing of migration.  ...

Jackson Glacier 2009
Date Published: April 8, 2016

Jackson Glacier

At the time this historic photograph was taken in 1911, Blackfoot Glacier encompassed the current Jackson Glacier. By 1939, Blackfoot Glacier's recession had resulted in two distinct glaciers, Jackson and Blackfoot. This photo pair shows glacial recession and successive vegetation growth along Jackson Glacier's terminus.

Contacts: Lisa McKeon
Iceberg Glacier 2008
Date Published: April 8, 2016

Iceberg Glacier circa 1940 - 2008

Iceberg Glacier in Glacier National Park.

Contacts: Lisa McKeon
Harrison Glacier 2009
Date Published: April 8, 2016

Harrison Glacier

While difficult to quantify, this photo pair of Harrison Glacier exemplifies the loss of glacier volume. Comparison of the ice profile in the foreground of the photos shows a marked thinning of the glacier over the years,. Colorful layers of sedimentary bedrock are being exposed as the glacier recedes from the cliff bands.

Contacts: Lisa McKeon
Grinnell Glacier Basin 2013
Date Published: April 8, 2016

Grinnell Glacier Basin 1936-2013

As Grinnell Glacier retreats, vegetation establishes itself in the newly exposed surfaces. The increase in vegetation along the moraine (center) in this pair is especially obvious.

Contacts: Lisa McKeon
Grinnell Glacier Basin 2014
Date Published: April 8, 2016
Status: Active

Grinnell Glacier Basin 1936-2014

A similar view of Grinnell Glacier from the glacier's eastern terminus shows extensive melting and subsequent result, Upper Grinnell Lake.

Please respect the photographer: When using these photographs, please credit the photographer and source (eg. T.J. Hileman, courtesy of Glacier National Park Archives). The paired images at the top of this page are examples of proper crediting for...

Contacts: Lisa McKeon
Grinnell Glacier Basin 2010
Date Published: April 8, 2016

Grinnell Glacier Basin 1936-2010

Upon close inspection of this photo pair, the viewer can appreciate the change in the volume of glacial ice that has melted from Grinnell Glacier. In the 2010 image, the glacier's terminus can be seen along the edge of Upper Grinnell Lake, a feature that did not exist in 1936.

Contacts: Lisa McKeon
Grinnell Glacier from Elrod's Rock and terminus 2008 in color.
Date Published: April 8, 2016

Grinnell Glacier from Elrod's Rock and terminus

This large boulder was used by Morton Elrod and other scientists as a baseline to measure the retreat of Grinnell Glacier’s terminus. It is now referred to as “Elrod’s Rock,” and the glacier’s terminus is no longer visible from this point.

Contacts: Lisa McKeon
Grinnell Glacier from Elrod's Rock 2008 in color.
Date Published: April 8, 2016

Grinnell Glacier from Elrod's Rock

This large boulder was used by Morton Elrod and other scientists as a baseline to measure the retreat of Grinnell Glacier’s terminus. It is now referred to as “Elrod’s Rock,” and the glacier’s terminus is no longer visible from this point.

Contacts: Lisa McKeon
Grinnell Glacier from South Moraine 2008 in color.
Date Published: April 8, 2016

Grinnell Glacier from South Moraine

This pair of photographs from Grinnell Glacier’s southeast edge shows the dramatic change in the glacier’s volume and area. Note the glacier’s depth along the headwall and its extent at the terminal moraine in the historic photograph.

Contacts: Lisa McKeon
Grinnell Glacier form partial North Moraine 2008 in color.
Date Published: April 8, 2016

Grinnell Glacier from partial North Moraine

North moraine of Grinnell Glacier. In 1924 the glacier’s ice margin was still in proximity to its lateral moraine .

Contacts: Lisa McKeon
Grinnell Glacier from North Moraine 2008 in color
Date Published: April 8, 2016
Status: Active

Grinnell Glacier from North Moraine, 1922 - 2008

View from north moraine of Grinnell Glacier.

Image Use

Most of the repeat photography images available on this website are in the public domain and may be reproduced without permission.  Images with restrictions are noted below the downloadable image.

Please respect the photographer: When using...

Contacts: Lisa McKeon
Filter Total Items: 251
February 23, 2016

Culvert trap

Biologists place a culvert trap in locations that they need data from.  Field crews will set up the culvert trap and check it daily, usually in the morning, to determine if a bear has been captured.  Additionally, trap doors are checked via radio telemetry. 

February 23, 2016

Telemetry by foot

Once a grizzly bear is radio collared, biologists can track its movements with telemetry on foot.   

February 23, 2016

Culvert trap and bait

Biologists use road-killed ungulates such as deer, elk, or bison as bait in the traps. 

February 23, 2016

At the capture site

At capture sites with road access, biologists drive to a trap with a bear inside to set up for collecting biological data. 

February 23, 2016

An immobilized bear.

Biologists use a syringe pole to immobilize the captured grizzly bear.  It takes approximately 10 minutes for a bear to become immobilized.  

February 23, 2016

Ready to remove from the trap

Biologists have immobilized the bear and prepare to lift it out of the trap and onto the tarp for data collection.  Once on the tarp the bear is easier to move. 

February 23, 2016

Preparing for collection of samples

A biologist prepares to collect biological information from the bear they have captured.  Biologists collect hair samples for genetic analysis, weigh the bear,  and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc.  Overall condition of the bear is assessed as well, including a body fat measurement.

February 23, 2016

Getting the bear's weight

One of the first measurements taken is the bear’s weight using a quadpod and electronic scale. 

February 23, 2016

Getting set up

Biologists are very careful to keep the grizzly bear under shade and protected from the elements while they collect biological data.  Vital signs are monitored throughout the handling period. 

February 23, 2016

Close up

The kerchief over the grizzly bear’s eyes protects it from dust and debris and reduces visual stimulation. The small tubing in its nose, known as a nasal cannula, delivers oxygen to the animal while it is tranquilized.  

February 23, 2016

Assessing body fat percentage of grizzly bear

Field personnel use bioelectrical impedance to assess body fat percentage of captured bears.  The procedure is similar to how body fat is measured in humans and is based on the resistance of body tissues to the flow of a small, harmless electrical signal.  The electrical current is impeded more by fat tissues compared with tissues that are composed mostly of water, thus

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Filter Total Items: 124
USGS
July 21, 1999

U.S. Geological Survey scientist Dr. Thomas J. Roffe received the Department of the Interior’s Superior Service Award for his outstanding contributions to wildlife health and natural resources management in the Greater Yellowstone Area during a recent meeting of the Greater Yellowstone Interagency Brucellosis Committee.

USGS
July 14, 1999

U.S. Geological Survey (USGS) scientist, Dr. Daniel Fagre, received the Department of the Interior’s Superior Service Award for his outstanding leadership of the Global Change Research Program in Glacier National Park, Montana.

USGS
April 5, 1999

Recent advances in genetic technology that allow scientists to study bear populations without handling bears is the topic of Katherine Kendall’s lecture scheduled for April 5 in Room 3004 at the Main Interior Building at 1849 C St., N.W., Washington, D.C. Reporters are invited to attend and cover the event. Kendall will be available to address questions following her lecture.

USGS
March 29, 1999

Recent advances in genetic technology that allow scientists to study bear populations without handling bears is the topic of Katherine Kendall’s lecture scheduled for April 1st at the U.S. Geological Survey’s (USGS) Visitor Center. Reporters are invited to attend and cover the event. Kendall will be available to address questions following her lecture.

Northern Rocky Mountain Science Center (NOROCK)

Northern Rocky Mountain Science Center (NOROCK)

Scientists from the Center work in the northern Rocky Mountains and across the U.S. Many work throughout the world on issues as diverse as global climate change, aquatic ecology, wildlife diseases, bison ecology, and large carnivores.

Go to NOROCK

Wyoming-Montana Water Science Center

Wyoming-Montana Water Science Center

The Water Science Center's hydrologists, engineers, geospatial analysts, hydrologic technicians, geologists, and support staff work to provide hydrologic data and interpretive studies.

Go to Center