All Multimedia

Silica sinter (an amorphous form of silicon dioxide) forms from the waters that flow from hot springs near Shoshone Lake, Yellowstone National Park. USGS photograph by Jake Lowenstern.

Visible relief in the hillside exposure is about 800-900 ft. Dusty assemblage deposit occurred approximately between 5100 and 5500 yr B.P. Magma volume of >5 km3, which is a lot for what was probably one eruptive stage. The source lava dome is gone, apparently having disintegrated entirely during extrusion and subsequent glacial interaction.

Summer geology intern Mindy Juergenson climbs over downed lodgepole pine trees killed in the fire of 1988 as she packs a GPS station out of the field (inset). Nine temporary stations are deployed each April/May and retrieved in October/November. The temporary stations supplement a network of permanent stations that record ground deformation data year-round.

Adam Mosbrucker tests equipment (Acoustic Doppler Current Profiler, survey-grade RTK-GPS and a map-grade GPS) in preparation for a lake bottom survey.

Due to the cataclysmic eruption of May 18, 1980, many of the locations annotated on this map are now either covered or no longer visible.

Information regarding volume and rates of advance for the crevassed Crater Glacier at Mount St. Helens, Washington, are extracted from Digital Elevation Models created from aerial photography. The red line shows the extent of Crater Glacier in 2012. Since 2012, the glacier has advanced about 50 m (160 ft) down the Loowit channel.

A level crew running a line from Mojave, California to Keeler, California via the state road, preparing the way for topographers to follow. R.A. Farmer, just to the left of the long-barreled Engineers WYE level instrument, was the levelman and Chief of Party.

Image scan of a historical bird migration card (1904).

Topographic mapping crew poses in camp in the Cascade Mountains of Washington.

Grant Glacier - 1902

USGS laboratory in Washington DC where water samples 1883-87 from Yellowstone National Park were analyzed. Photograph, USGS Historical Photography Library.

Portage (the carrying of a boat or its cargo between two navigable waterways) from Niukluk to Kruzgamepa River, Seward Peninsula. Alfred Hulse Brooks party. Alaska. 1900.

Grinnell Glacier from trail 1900

Cliff Palace, Mesa Verde National Park, Colorado - 1891

Embudo Student Hydrographers

Hydrographer taking a cableway streamflow measurement at the first USGS streamgage at Embudo, New Mexico, established in 1889.

USGS prersonnel at the Embudo Station, New Mexico. Embudo was selected as the site of the first USGS streamgaging station in 1889 because of the need for systematic water resource assessments of western states as it not only offered a favorable climate and easy rail access, but qualified for congressional funding tapped specifically for the “arid West.”

Grinnell Glacier 1887

Grinnell Glacier from Footbridge 1887.

Old Faithful Geyser in Upper Geyser Basin. 1878(?). Yellowstone National Park, Wyoming. U.S. Geological and Geographical Survey of the Territories (Hayden Survey).