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screenshot showing units of a geologic map as seen on the Intermountain West Seamless Geologic Map Explorer
Seamless geologic map in the vicinity of the San Juan basin and San Juan volcanic field
Seamless geologic map in the vicinity of the San Juan basin and San Juan volcanic field
Seamless geologic map in the vicinity of the San Juan basin and San Juan volcanic field

Surficial and bedrock geology in the northern San Juan basin and San Juan volcanic field (Colorado, USA) from the Intermountain West Seamless Geologic Map Explorer (https://apps.usgs.gov/intermountain_west_seamless_geologic_map_explorer/).

Map of western Colorado showing sample sites used in black particles in snow study
Sample sites used in black particles from road tire wear study
Sample sites used in black particles from road tire wear study
Sample sites used in black particles from road tire wear study

Map showing locations of snow sampling sites (black circles) within the Upper Colorado River basin, the Colorado River, and the Continental Divide.

Map showing locations of snow sampling sites (black circles) within the Upper Colorado River basin, the Colorado River, and the Continental Divide.

Microscopic image of schist showing garnets
Proterozoic orogenesis and metamorphism
Proterozoic orogenesis and metamorphism
Proterozoic orogenesis and metamorphism

Certain minerals, like the red garnets pictured here, are particularly effective at recording the metamorphic history of a rock.

Certain minerals, like the red garnets pictured here, are particularly effective at recording the metamorphic history of a rock.

Flowchart showing
The envisioned wildfire risk modeling framework
The envisioned wildfire risk modeling framework
The envisioned wildfire risk modeling framework

Flowchart of the steps taken to dynamically model wildfire risk, showing inputs (topography, weather, vegetation, and fuels) that are passed to processes (ignition probability and fire spread and behavior). Changes in available fuels are considered each year in the simulations, modifying the inputs.

Flowchart of the steps taken to dynamically model wildfire risk, showing inputs (topography, weather, vegetation, and fuels) that are passed to processes (ignition probability and fire spread and behavior). Changes in available fuels are considered each year in the simulations, modifying the inputs.

Close up view of metagreywacke
Precambrian basement and tectonism in the Intermountain West
Precambrian basement and tectonism in the Intermountain West
Precambrian basement and tectonism in the Intermountain West

Exploring the Colorado basement and Proterozoic shear zones. Fresh outcrops like this metagreywacke near Almont, Colorado, and cutting-edge techniques shed light on crustal growth and tectonic processes.

Exploring the Colorado basement and Proterozoic shear zones. Fresh outcrops like this metagreywacke near Almont, Colorado, and cutting-edge techniques shed light on crustal growth and tectonic processes.

Drill rig along dirt road in the Hanna basin, Wyoming
Extracting cores for sedimentological research
Extracting cores for sedimentological research
Extracting cores for sedimentological research

Rock cores from the Hanna basin (Wyoming) penetrate sediments deposited during the Paleocene-Eocene thermal maximum. 

Rock cores from the Hanna basin (Wyoming) penetrate sediments deposited during the Paleocene-Eocene thermal maximum. 

World map with vegetation types for 2020, with areas of land change in North America circled
Areas of landcover change in North America
Areas of landcover change in North America
Areas of landcover change in North America

Landcover types from the World Terrestrial Ecosystems (WTE) 2020 dataset (Sayre, 2022).

Animated world map showing the changes of last interglacial simulated vegetation from 127ka to 119ka
Last Interglacial simulated biomes
Last Interglacial simulated biomes
Last Interglacial simulated biomes

Last Interglacial vegetation changes simulated for 127-119 ka (127,000-119,000 years ago) by BIOME4, an equilibrium vegetation model (Sommers et al. 2021, data from Shafer et al. 2021).

Last Interglacial vegetation changes simulated for 127-119 ka (127,000-119,000 years ago) by BIOME4, an equilibrium vegetation model (Sommers et al. 2021, data from Shafer et al. 2021).

Lance Brady (USGS NUSO) and Patricia Bright (USGS) attend meeting at the White House
Lance Brady (USGS NUSO) and Patricia Bright (USGS) attend meeting at the White House
Lance Brady (USGS NUSO) and Patricia Bright (USGS) attend meeting at the White House
Lance Brady (USGS NUSO) and Patricia Bright (USGS) attend meeting at the White House

On August 27th Lance Brady (USGS NUSO) attended a "White House Roundtable on Emerging Technologies for Preventing Health Emergencies" convened by the White House Office of Science & Technology Policy (OSTP). Patricia Bright, Senior Science Advisor for the USGS Ecosystems Environmental Health Program, was also in attendance.

On August 27th Lance Brady (USGS NUSO) attended a "White House Roundtable on Emerging Technologies for Preventing Health Emergencies" convened by the White House Office of Science & Technology Policy (OSTP). Patricia Bright, Senior Science Advisor for the USGS Ecosystems Environmental Health Program, was also in attendance.

National Uncrewed Systems Office - What We Do
National Uncrewed Systems Office - What We Do
National Uncrewed Systems Office - What We Do
National Uncrewed Systems Office - What We Do

Collage of photographs taken during various research missions performed by the National Uncrewed Systems Office (NUSO) representing What We Do

Collage of photographs taken during various research missions performed by the National Uncrewed Systems Office (NUSO) representing What We Do

National Uncrewed Systems Office - Who We Are
National Uncrewed Systems Office - Who We Are
National Uncrewed Systems Office - Who We Are
National Uncrewed Systems Office - Who We Are

Collage of photographs of the researchers in the National Uncrewed Systems Office (NUSO) showing Who We Are

Top Row: 
Mark Bauer, Victoria Scholl, Joe Adams, Jill Cress, and Matt Burgess (left)
Todd Burton (middle)
Victoria Scholl (right)

Collage of photographs of the researchers in the National Uncrewed Systems Office (NUSO) showing Who We Are

Top Row: 
Mark Bauer, Victoria Scholl, Joe Adams, Jill Cress, and Matt Burgess (left)
Todd Burton (middle)
Victoria Scholl (right)

Geologist makes notes at an outcrop of volcanic rocks in Death Valley
Tectonic and Magmatic evolution of Death Valley, California
Tectonic and Magmatic evolution of Death Valley, California
Tectonic and Magmatic evolution of Death Valley, California

Geologist sampling ignimbrites of the Central Death Valley volcanic field for geochronology.

View of Colorado's Lincoln Gulch across a wooded valley
Grizzly Peak Caldera, Southern Rocky Mountain Volcanic Field, Colorado
Grizzly Peak Caldera, Southern Rocky Mountain Volcanic Field, Colorado
Grizzly Peak Caldera, Southern Rocky Mountain Volcanic Field, Colorado

The west side of Lincoln Creek drainage reveals the intricate details of the Grizzly Peak caldera. Dikes cutting the tuff help establish the timing of volcanic activity that shaped this landscape.

The west side of Lincoln Creek drainage reveals the intricate details of the Grizzly Peak caldera. Dikes cutting the tuff help establish the timing of volcanic activity that shaped this landscape.

NUSO researchers prepare for evaluation flights with a vertical take-off and landing UAS
NUSO researchers prepare for evaluation flights with a vertical take-off and landing UAS
NUSO researchers prepare for evaluation flights with a vertical take-off and landing UAS
NUSO researchers prepare for evaluation flights with a vertical take-off and landing UAS

NUSO researchers Matt Burgess and Mark Bauer prepare for evaluation flights with the WingtraOne GEN II vertical take-off and landing mapping UAS equipped with the newly released lidar payload.

NUSO researchers Matt Burgess and Mark Bauer prepare for evaluation flights with the WingtraOne GEN II vertical take-off and landing mapping UAS equipped with the newly released lidar payload.

USGS personnel standing at the overlook to the quarry prior to conducting UAS operations.
USGS personnel standing at the overlook to the quarry prior to conducting UAS operations.
USGS personnel standing at the overlook to the quarry prior to conducting UAS operations.
USGS personnel standing at the overlook to the quarry prior to conducting UAS operations.

USGS personnel standing at the overlook to the quarry prior to conducting UAS operations.

Thomas Casadevall (Scientist Emeritus with the Geology, Geophysics, and Geochemistry Science Center), Paco Van Sistine (GECSC), Victoria Scholl (NUSO), Matt Burgess (NUSO)

USGS personnel standing at the overlook to the quarry prior to conducting UAS operations.

Thomas Casadevall (Scientist Emeritus with the Geology, Geophysics, and Geochemistry Science Center), Paco Van Sistine (GECSC), Victoria Scholl (NUSO), Matt Burgess (NUSO)

Group photo captured using a drone standing at the overlook for the Marsh-Felch quarry.
Group photo captured using a drone standing at the overlook for the Marsh-Felch quarry.
Group photo captured using a drone standing at the overlook for the Marsh-Felch quarry.
Group photo captured using a drone standing at the overlook for the Marsh-Felch quarry.

Group photo captured using a drone. Left to right: Matt Burgess (NUSO), Paco Van Sistine (GECSC), Victoria Scholl (NUSO) standing at the overlook for the Marsh-Felch quarry.

Group photo captured using a drone. Left to right: Matt Burgess (NUSO), Paco Van Sistine (GECSC), Victoria Scholl (NUSO) standing at the overlook for the Marsh-Felch quarry.

USGS geologists view the informational sign at the quarry upper overlook in July 2024.
USGS geologists view the informational sign at the quarry upper overlook in July 2024.
USGS geologists view the informational sign at the quarry upper overlook in July 2024.
USGS geologists view the informational sign at the quarry upper overlook in July 2024.

USGS geologists view the informational sign at the quarry upper overlook in July 2024. The sign describes the history of Professor O.C. Marsh and Marshall P. Felch, the namesakes of the quarry, who worked together to excavate and study dinosaur bones. The sign features a photograph by Israel Cook Russel, a USGS Geologist, in July 1888.

USGS geologists view the informational sign at the quarry upper overlook in July 2024. The sign describes the history of Professor O.C. Marsh and Marshall P. Felch, the namesakes of the quarry, who worked together to excavate and study dinosaur bones. The sign features a photograph by Israel Cook Russel, a USGS Geologist, in July 1888.

Victoria Scholl (NUSO) conducts a UAS flight at the  Marsh-Felch Quarry site.
Victoria Scholl (NUSO) conducts a UAS flight at the Marsh-Felch Quarry site.
Victoria Scholl (NUSO) conducts a UAS flight at the Marsh-Felch Quarry site.
Victoria Scholl (NUSO) conducts a UAS flight at the Marsh-Felch Quarry site.

Victoria Scholl (NUSO) conducts a Skydio X10 UAS 3D Scan flight at the 
Marsh-Felch Quarry site. 

Field crew standing at the upper overlook on the Marsh-Felch Quarry site.
Field crew standing at the upper overlook on the Marsh-Felch Quarry site.
Field crew standing at the upper overlook on the Marsh-Felch Quarry site.
Field crew standing at the upper overlook on the Marsh-Felch Quarry site.

Field crew standing at the upper overlook on the Marsh-Felch Quarry site. 

Chart showing Reflectance spectrum for fragments from a shredded road tire, where reflectance increases with wavelength
Reflectance spectrum for fragments from a shredded road tire
Reflectance spectrum for fragments from a shredded road tire
Reflectance spectrum for fragments from a shredded road tire

Reflectance spectrum for fragments from a shredded road tire showing a strong capacity to absorb solar radiation. The average reflectance over the spectrum is 0.0280. The reflectance of a flat, pure white surface, such as clean snow, is 1.

Reflectance spectrum for fragments from a shredded road tire showing a strong capacity to absorb solar radiation. The average reflectance over the spectrum is 0.0280. The reflectance of a flat, pure white surface, such as clean snow, is 1.

Geologist examining high-angle normal fault in the Jackson Mountains, Nevada
High-angle normal fault in the Jackson Mountains, Nevada
High-angle normal fault in the Jackson Mountains, Nevada
High-angle normal fault in the Jackson Mountains, Nevada

Investigating a fault mirror formed on a range-bounding fault that offsets Triassic volcaniclastic rocks of the Jackson Mountains 

Investigating a fault mirror formed on a range-bounding fault that offsets Triassic volcaniclastic rocks of the Jackson Mountains 

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