Us Geological Survey Collection

2 men operating map printing press at U.S. Geol. Survey, (1900?). Creator: Frances Benjamin Johnston
2 men operating map printing press at U.S. Geol. Survey, (1900?)

Glacier National Park, 2009. Image 2 of 2. Glacier National Park is located in Montana, USA. The image, taken in 2009, shows Blackfoot glacier (left) and Jackson glacier (right)

Glacier National Park, 1914. Image 1 of 2. Glacier National Park is located in Montana, USA. The image, taken in 1914, shows how Blackfoot glacier (left) and Jackson glacier (right)

Iceberg Glacier, Montana, 2008. Image 2 of 2. Iceberg Glacier is located at Glacier National Park, Montana, USA. This photograph, taken in 2008

Brent Dalrymple, US geologist
Brent Dalrymple (born 1937), US geologist. Dalrymple is adjusting a mass spectrometer vacuum flight tube. Mass spectrometers accurately detect the mass of molecules of a sample

Grinnell Glacier, Montana, USA, in 1936
Grinnell Glacier, Montana, USA in 1936. Image 1 of 2. This image of Grinnell Glacier, taken in 1900, shows the glacier filling the basin from left to right

Sperry Glacier, Montana, USA, in 1913
Sperry Glacier, Montana, USA in 1913. Image 1 of 2. This panoramic view of Sperry Glacier, taken in 1913, shows the glacier spanning the entire basin (left to right)

Sperry Glacier, Montana, USA, in 2008
Sperry Glacier, Montana, USA in 2008. Image 2 of 2. Glaciers are large, slow-moving expanses of ice, formed from compacted layers of snow

Harrison Glacier, Montana, USA, in 2009
Harrison Glacier, Montana, USA in 2009. Image 2 of 2. Harrison Glacier is the largest glacier within Glacier National Park

Grinnell Glacier, Montana, USA, in 2010
Grinnell Glacier, Montana, USA in 2010. Image 2 of 2. Glaciers are large, slow-moving expanses of ice, formed from compacted layers of snow

Grinnell Glacier, Montana, USA, in 1920
Grinnell Glacier, Montana, USA in 1920. Image 1 of 2. Man standing on Grinnell Glacier overlook, Glacier National Park, Montana, USA, in 1920

Othniel C. Marsh, US palaeontologist
Othniel Charles Marsh (1831-1899), American palaeontologist. Marsh attended Yale University and was made professor of palaeontology there in 1866

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"Exploring the Past and Present: The US Geological Survey's Journey through Time" Step into the captivating world of Glacier National Park, where the US Geological Survey has been unraveling Earth's mysteries since 1879. From breathtaking landscapes to groundbreaking discoveries, this renowned agency has left an indelible mark on our understanding of our planet. In 1914, amidst towering peaks and pristine lakes, the USGS embarked on a mission to study Glacier National Park. With their keen eye for detail, they captured a snapshot of its beauty that still mesmerizes us today. Fast forward to 2009, and their dedication remained unwavering as they revisited this majestic park once again. Venturing further into Montana's icy realm in 2008, the USGS set their sights on Iceberg Glacier. Armed with scientific instruments and expertise, they delved deep into its frozen heart to unlock secrets hidden within its ancient ice sheets. Meet Brent Dalrymple – a visionary geologist who played a pivotal role in expanding our knowledge about Earth's history. His contributions have paved the way for countless breakthroughs in geological research. Journey back to 1936 when Grinnell Glacier stood tall against time's relentless march. Through meticulous studies conducted by the USGS, we gain insight into how climate change has shaped these glacial wonders over decades. Sperry Glacier witnessed both past and present unfold before it – from being studied by intrepid scientists in 1913 to facing scrutiny once more in 2008. These investigations shed light on environmental shifts that affect not only Montana but also our entire planet. Harrison Glacier became another subject of intrigue for the USGS in 2009. Their findings provided critical data regarding glacier recession rates – an alarming indicator of global warming's impact on vulnerable ecosystems worldwide. Grinnell Glacier continued capturing hearts even after almost a century had passed since it was first surveyed in 1920.