Images

GeoGirls deploy seismometers at Mount St. Helens and learn how to interpret earthquake data.

GeoGirls collect water quality data at Coldwater Lake and sieve landslide deposits to learn more about the impact of the 1980 eruption and the transport of volcanic sediment.

A balloon and simple point-and-shoot camera is used to collect digital images that are stitched together to build a 3D elevation model of the landscape.

Iiwi with small radio transmitter attached to help track the bird's movement through the forest

This single-celled freshwater algae wasa collected as part of the first-ever study of the green algae family called desmids in Florida’s Loxahatchee National Wildlife Refuge, in the northern Everglades. USGS biologist Barry H.

Meet the GeoGirls, their high school mentors, teacher mentors and scientists at the GeoGirls media day on August 1, 2018.

Measuring the wing length of a banded Iiwi

To collect, identify and document these single-celled algae called desmids, USGS biologist Barry H. Rosen has traveled by airboat into the interior of Florida’s Loxahatchee National Wildlife Refuge, where decaying marsh grasses created a mosaic of peat soils and the soft, slightly acidic water where desmids grow.

GeoGirls use ground-penetrating radar to locate rock and ash layers from past eruptions at Mount St. Helens (Mount Adams is pictured in the background).

At Mount St. Helens, the GeoGirls explore the Ape Cave lava tube and learn how to interpret the layers left in the rock wall. 

This is the first of two microscopic images of potentially toxic cyanobacteria, Microcystis aeruginosa.  In both images, the cyanobacteria have been exposed to a green stain.

Image 1: Microcystis aeruginosa in freshwater. The green stain doesn’t enter the cells, which show up in red.

USGS ecologists Molly McCormick (left) and Katie Laushman (right) conducting a seeding experiment that is a part of RAMPS, a new USGS-led initiative to improve restoration outcomes in

This is the second of two microscopic images of potentially toxic cyanobacteria, Microcystis aeruginosa.  In both images, the cyanobacteria have been exposed to a green stain.

Satellite images of the same wetland taken in 2008 and 2016 show a wetland restoration project has produced some gains in marsh area.

An aerial view of southeast Louisiana coastal marshes. 

This map shows the historic trend in wetland losses, with early losses in red and the most recent ones in purple.

The image from the USGS Instagram Story (@USGS) showing places within the U.S. that contain the words red, white, and blue.

Chart showing changes in vegetation density in the Mississippi River delta in Louisiana, May 2015-May 2016. From a USGS Open File Report published in July 2017 by co-authors Elijah Ramsey III and Amina Rangoonwala,

This image of the Las Vegas /Lake Mead / Grand Canyon area was acquired on June 16, 2017, with Indian Space Research Organization’s Resourcesat-2 AWiFS sensor. Images of this region can be useful to help detect changes in vegetation and water availability for growing desert communities.

Marker bed known as the Loriolia Bed, found 80 feet below the contact of the Glen Rose Limestone and the Kainer Formation. The photograph was taken north of Farm to Market Road (FM) 195, approximately 1,500 feet west of the intersection of FM 220 and FM 195. The Loriolia texana fossils are identified by white arrows (photograph by Allan K. Clark, U.S.

A bat flies over a lake.