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This color photograph frames the beach surrounding a river inlet off of the Flaming Gorge reservoir
Beach on Flaming Gorge Reservoir
Beach on Flaming Gorge Reservoir
Beach on Flaming Gorge Reservoir

On the expedition, USGS scientists are tasked with collecting sediment samples from the beaches where we camp. The goal of the study is to examine the presence of microplastics along the river. There are strict protocols on the condition of the sediment we collect, so sometimes we have to travel far from camp in order to find suitable sediment.

On the expedition, USGS scientists are tasked with collecting sediment samples from the beaches where we camp. The goal of the study is to examine the presence of microplastics along the river. There are strict protocols on the condition of the sediment we collect, so sometimes we have to travel far from camp in order to find suitable sediment.

Day 3 mirror reflections of landscape on water
Reflections
Reflections
Reflections

Day 3 mirror reflections of landscape on water

Day 3 mirror reflections of landscape on water

Day 3 mirror reflections of landscape on water
Reflections
Reflections
Reflections

Day 3 mirror reflections of landscape on water

Day 3 mirror reflections of landscape on water

Day 3 mirror reflections of landscape on water
Reflections
Reflections
Reflections

Day 3 mirror reflections of landscape on water

Day 3 mirror reflections of landscape on water

Color photograph shows the green river bordered by a tall rock formation.
Morning Fog while at Camp
Morning Fog while at Camp
Morning Fog while at Camp

Waking up in the early morning revealed a layer of fog that had fallen around our camp and the river. Fog is the result of water vapor condensing into water droplets that are suspended the air.

Waking up in the early morning revealed a layer of fog that had fallen around our camp and the river. Fog is the result of water vapor condensing into water droplets that are suspended the air.

This color photograph shows Janis holding a dark blue and white USGS flag up in the wind while Tom eats his sandwich.
Lunchtime underway, with USGS flag
Lunchtime underway, with USGS flag
Lunchtime underway, with USGS flag

HydroTech Janis LeMaster raises the USGS flag and Expedition Leader Tom Minckley eats his lunch as the SCREE boats are towed down the Flaming Gorge Reservoir (May 25th, 2019).

HydroTech Janis LeMaster raises the USGS flag and Expedition Leader Tom Minckley eats his lunch as the SCREE boats are towed down the Flaming Gorge Reservoir (May 25th, 2019).

180 degree panorama photograph with water in the foreground, rock formations in the middle, and a partly cloudy sky above.
Panorama shot from upper Flaming Gorge reservoir
Panorama shot from upper Flaming Gorge reservoir
Panorama shot from upper Flaming Gorge reservoir

Panorama photo of Flaming Gorge Reservoir (May 25th, 2019).

Color photograph showing a laminated Paper Powell on the left side foreground, water and rock formations in the background
Paper Powell at Flaming Gorge Reservoir
Paper Powell at Flaming Gorge Reservoir
Paper Powell at Flaming Gorge Reservoir

Paper Powell, making an appearance on a hill overlooking the Flaming Gorge Reservoir, near the site of SCREE's second camp (May 25th, 2019).

Paper Powell, making an appearance on a hill overlooking the Flaming Gorge Reservoir, near the site of SCREE's second camp (May 25th, 2019).

Color photograph looking down on SCREE's second camp, with boats, kithcen area, and tents surrounded by shrubs, small trees
Overlooking SCREE's second camp
Overlooking SCREE's second camp
Overlooking SCREE's second camp

Overlooking SCREE's second camp, on the shore of Flaming Gorge Reservoir. In addition to the 5 SCREE boats, the University of Wyoming research vessel that towed the Expedition down 70 miles of man-made lake is beached for the evening (May 25th, 2019).

Overlooking SCREE's second camp, on the shore of Flaming Gorge Reservoir. In addition to the 5 SCREE boats, the University of Wyoming research vessel that towed the Expedition down 70 miles of man-made lake is beached for the evening (May 25th, 2019).

180 degree panorama photograph, showing water, rock formations, a partly cloudy sky. The sun is setting on the right hand side.
Sunset from camp two, Flaming Gorge Reservoir
Sunset from camp two, Flaming Gorge Reservoir
Sunset from camp two, Flaming Gorge Reservoir

Panorama photo of Flaming Gorge Reservoir at sunset, taken from a hill overlooking SCREE's second camp (May 25th, 2019).

Panorama photo of Flaming Gorge Reservoir at sunset, taken from a hill overlooking SCREE's second camp (May 25th, 2019).

Day 2 soil sampling for microplastics
Soil sampling
Soil sampling
Soil sampling

Day 2 soil sampling for microplastics

Day 2 soil sampling for microplastics

Day 2 Janis LeMaster sampling water quality A
Water science
Water science
Water science

Day 2 Janis LeMaster sampling water quality A

Day 2 Janis LeMaster sampling water quality A

Day 2 bat sonar equipment for study
Bat study
Bat study
Bat study

Day 2 bat sonar equipment for study

Day 2 bat sonar equipment for study

Day 3 tent with buttes at dawn
Tent with buttes
Tent with buttes
Tent with buttes

Day 3 tent with buttes at dawn

Day 3 tent with buttes at dawn

This color photograph shows a USGS streamgaging station on a riverbank with a mostly cloudy sky overhead
SCREE passing USGS streamgage 09217000
SCREE passing USGS streamgage 09217000
SCREE passing USGS streamgage 09217000

SCREE passing USGS streamgage (station #09217000 - Green River near Green River, WY) shortly after launching from Expedition Island on May 24th, 2019.

SCREE passing USGS streamgage (station #09217000 - Green River near Green River, WY) shortly after launching from Expedition Island on May 24th, 2019.

Color photograph looking down on SCREE's first camp, with boats, kitchen, and tents in the foreground
Overlooking SCREE's first camp
Overlooking SCREE's first camp
Overlooking SCREE's first camp

Overlooking SCREE's first camp, on the banks of the Green River just above Flaming Gorge Reservoir (May 24th, 2019).

Overlooking SCREE's first camp, on the banks of the Green River just above Flaming Gorge Reservoir (May 24th, 2019).

Day 2 landscape and rafts at dawn
Rafts at dawn
Rafts at dawn
Rafts at dawn

Day 2 landscape and rafts at dawn

Day 2 landscape and rafts at dawn

Pelicans with landscape
Day 1 pelicans with landscape
Day 1 pelicans with landscape
Day 1 pelicans with landscape

Day 1 pelicans with landscape

Pelicans overhead
Day 1 pelicans overhead
Day 1 pelicans overhead
Day 1 pelicans overhead

Day 1 pelicans overhead

Day 1 pelicans and stormy weather
Pelicans and storms
Pelicans and storms
Pelicans and storms

Day 1 pelicans and stormy weather

Day 1 pelicans and stormy weather

Day 1 rafts on Green River
Rafts
Rafts
Rafts

Day 1 rafts on Green River

Day 1 rafts on Green River