Grinnell Glacier from Footbridge 2008 in black and white.
Images
Grinnell Glacier from Footbridge 2008 in black and white.
Grinnell Glacier from Lake Josephine 2008 in black and white.
Grinnell Glacier from Lake Josephine 2008 in black and white.
Grinnell Glacier from Mount Gould - 1981
Grinnell Glacier from Mount Gould - 1981
Grinnell Glacier from Mount Gould - 1998
Grinnell Glacier from Mount Gould - 1998
Grinnell Glacier from Mount Gould - 2009
Grinnell Glacier from Mount Gould - 2009
Grinnell Glacier from Mount Gould - 2013
Grinnell Glacier from Mount Gould - 2013
Grinnell Glacier from Footbridge 2008 in black and white.
Grinnell Glacier from Footbridge 2008 in black and white.
Grinnell Glacier from Mount Gould - 1938
Grinnell Glacier from Mount Gould - 1938
A USGS scientist skis in to Dead Horse Point on Going-to-the-Sun Road in Glacier NP.
A USGS scientist skis in to Dead Horse Point on Going-to-the-Sun Road in Glacier NP.
It requires heavy machinery to remove snow and debris along the road. In this image, crews are removing 20+ feet of snow from the Rim Rock area near Logan Pass along the Goin-to-the-Sun Road.
It requires heavy machinery to remove snow and debris along the road. In this image, crews are removing 20+ feet of snow from the Rim Rock area near Logan Pass along the Goin-to-the-Sun Road.
Sperry Glacier in Glacier National Park.
Sperry Glacier in Glacier National Park.
Monitoring glaciers in Glacier National Park.
Monitoring glaciers in Glacier National Park.
Grinnell Glacier in Glacier National Park.
Grinnell Glacier in Glacier National Park.
Mapping the glacier's edge in Glacier National Park.
Mapping the glacier's edge in Glacier National Park.
Montana Cooperative Fishery Research Unit – Sean Townsend paddles across Kintla Lake in Glacier National Park, sampling for invasive lake trout. Native bull trout are negatively affected by invasives such as lake trout and runoff from upstream glaciers.
Montana Cooperative Fishery Research Unit – Sean Townsend paddles across Kintla Lake in Glacier National Park, sampling for invasive lake trout. Native bull trout are negatively affected by invasives such as lake trout and runoff from upstream glaciers.
Two researchers traverse Grinnell Glacier in Glacier National Park.
Two researchers traverse Grinnell Glacier in Glacier National Park.
The thick, crevassed, ice flows of historic Shepard Glacier have been diminished to less than 0.1 square kilometer in area by 2005. According to the criteria set by the USGS Repeat Photography Project, Shepard Glacier is now considered to be too small to be defined as a glacier. (Blase Reardon)
The thick, crevassed, ice flows of historic Shepard Glacier have been diminished to less than 0.1 square kilometer in area by 2005. According to the criteria set by the USGS Repeat Photography Project, Shepard Glacier is now considered to be too small to be defined as a glacier. (Blase Reardon)
USGS scientist sets up a repeat photograph of Grinnell Glacier in Glacier National Park to illustrate glacial recession due to impacts of climate change.
USGS scientist sets up a repeat photograph of Grinnell Glacier in Glacier National Park to illustrate glacial recession due to impacts of climate change.
The Garden Wall Weather Station is situated below the Garden Wall and adjacent to the Haystack Creek avalanche path in Glacier National Park. It provides meteorological data for avalanche forecasting and research, including wind speed and direction, air temperature, relative humidity, and net radiation measurements.
The Garden Wall Weather Station is situated below the Garden Wall and adjacent to the Haystack Creek avalanche path in Glacier National Park. It provides meteorological data for avalanche forecasting and research, including wind speed and direction, air temperature, relative humidity, and net radiation measurements.
USGS Physical Scientist Erich Peitzsch sets up a weather station on Snowslip Mountain in Glacier National Park. It provides meteorological data for avalanche forecasting and research, including wind speed and direction, air temperature, relative humidity, and net radiation measurements.
USGS Physical Scientist Erich Peitzsch sets up a weather station on Snowslip Mountain in Glacier National Park. It provides meteorological data for avalanche forecasting and research, including wind speed and direction, air temperature, relative humidity, and net radiation measurements.