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Burned hill after fire with dead and charred trees.
Hill at Whiskeytown National Recreation Area 2 Months After Fire
Hill at Whiskeytown National Recreation Area 2 Months After Fire
Hill at Whiskeytown National Recreation Area 2 Months After Fire

A landscape at Whiskeytown National Recreation Area 2 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

A landscape at Whiskeytown National Recreation Area 2 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

Clearing and road with burned hillside in the background.
Landscape at Whiskeytown National Recreation Area 2 Months After Fire
Landscape at Whiskeytown National Recreation Area 2 Months After Fire
Landscape at Whiskeytown National Recreation Area 2 Months After Fire

A landscape at Whiskeytown National Recreation Area 2 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

A landscape at Whiskeytown National Recreation Area 2 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

Roadside area with burned  clearing and trees.
Hillside at Whiskeytown National Recreation Area 2 Months After Fire
Hillside at Whiskeytown National Recreation Area 2 Months After Fire
Hillside at Whiskeytown National Recreation Area 2 Months After Fire

A landscape at Whiskeytown National Recreation Area 2 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

A landscape at Whiskeytown National Recreation Area 2 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

A window showing blue ocean water, with 3 camera lenses pointed through the window, and a pair of feet near the window.
Looking at the ocean through the bottom of a plane
Looking at the ocean through the bottom of a plane
Looking at the ocean through the bottom of a plane

Looking through the belly port of a small airplane before an aerial photographic survey starts, Fall 2018.

The Seabird Studies Team at the USGS Western Ecological Research Center is conducting aerial photographic surveys of the ocean off central and southern California to create comprehensive maps of seabird and marine mammal distributions.

Looking through the belly port of a small airplane before an aerial photographic survey starts, Fall 2018.

The Seabird Studies Team at the USGS Western Ecological Research Center is conducting aerial photographic surveys of the ocean off central and southern California to create comprehensive maps of seabird and marine mammal distributions.

Kanab North reclamation study site
Kanab North reclamation study site informational sign.
Kanab North reclamation study site informational sign.
Kanab North reclamation study site informational sign.

Kanab North reclamation study site informational sign. These signs identify the project benefits in mining, jobs and the environment.

One-story yellow concrete block house in Cape San Blas, Florida
Fish Inn, the scientists' field station, before Hurricane Michael
Fish Inn, the scientists' field station, before Hurricane Michael
Fish Inn, the scientists' field station, before Hurricane Michael

For ten years, this yellow concrete block house in Cape San Blas, Florida, dubbed Fish Inn, was the seasonal office, laboratory and living quarters for a team of USGS sea turtle researchers during their field season from November till April.

For ten years, this yellow concrete block house in Cape San Blas, Florida, dubbed Fish Inn, was the seasonal office, laboratory and living quarters for a team of USGS sea turtle researchers during their field season from November till April.

Glen Canyon Dam jet tubes releasing water into the Colorado River for a high flow experiment.
Glen Canyon Dam jet tubes releasing water for a high flow experiment
Glen Canyon Dam jet tubes releasing water for a high flow experiment
Glen Canyon Dam jet tubes releasing water for a high flow experiment

Glen Canyon Dam jet tubes releasing water into the Colorado River for a November 2018 high flow experiment. The increase in flow of the Colorado River downstream of the dam mobilizes sand at the bottom of the river and that sand rebuilds sandbars in Grand Canyon.

Glen Canyon Dam jet tubes releasing water into the Colorado River for a November 2018 high flow experiment. The increase in flow of the Colorado River downstream of the dam mobilizes sand at the bottom of the river and that sand rebuilds sandbars in Grand Canyon.

fathead minnow inside an exposure tank
Fathead minnows (Pimephales promelas) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.
Fathead minnows (Pimephales promelas) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.
Fathead minnows (Pimephales promelas) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.

Fathead minnows (Pimephales promelas) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.

freshwater mussel in an exposure tank
Pond mussel (Ligumia subrostrata) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts
Pond mussel (Ligumia subrostrata) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts
Pond mussel (Ligumia subrostrata) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts

Pond mussel (Ligumia subrostrata) in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts

Silver trailer sitting outside
Mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.
Mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.
Mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts.

Mobile laboratory deployed at the legacy fire-training area contaminated by per- and polyfluoroalkyl substances (PFAS) derived from aqueous film-forming foams on Cape Cod, Massachusetts. 

Passive samplers inside exposure tank
Passive samplers in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts
Passive samplers in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts
Passive samplers in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts

Passive samplers in an exposure tank housed inside of a mobile laboratory at the legacy fire-training area contaminated by PFAS derived from aqueous film-forming foams on Cape Cod, Massachusetts

man holding up two small sample bags of larval fish
Collecting larval fish for the Dragonfly Mercury Project
Collecting larval fish for the Dragonfly Mercury Project
Collecting larval fish for the Dragonfly Mercury Project

Between 2009 and 2018, scientists conducted a national scale assessment of mercury accumulation in the National Park System using dragonfly larvae as biosentinels (species that accumulate a pollutant in their tissues as an index of exposure to other organisms without significant adverse effects to the biosentinel) through a citizen science network called the Dragonf

Between 2009 and 2018, scientists conducted a national scale assessment of mercury accumulation in the National Park System using dragonfly larvae as biosentinels (species that accumulate a pollutant in their tissues as an index of exposure to other organisms without significant adverse effects to the biosentinel) through a citizen science network called the Dragonf

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