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Low bridge hazard across Green River
Low bridge hazard across Green River
Low bridge hazard across Green River
Low bridge hazard across Green River

SCREE raft preparing to navigate under Taylor Flats Bridge which poses a potential hazard depending on water flow levels from Flaming Gorge Dam

SCREE raft preparing to navigate under Taylor Flats Bridge which poses a potential hazard depending on water flow levels from Flaming Gorge Dam

A flock of pelicans in the river at Brown's Park
Pelicans in Brown's Park
Pelicans in Brown's Park
Pelicans in Brown's Park

A flock of pelicans in the water in Brown's Park.

UV light trap set up at dusk along the river's edge to collect and inventory riparian insect populations
Insect survey using UV light trap
Insect survey using UV light trap
Insect survey using UV light trap

UV light trap set up at dusk along the river's edge to collect and inventory riparian insect populations

UV light trap set up at dusk along the river's edge to collect and inventory riparian insect populations

A downriver  view of Red Canyon from about 100 feet above the river on the hillside.
Looking down on camp at Big Pine, Red Canyon.
Looking down on camp at Big Pine, Red Canyon.
Looking down on camp at Big Pine, Red Canyon.

The photo shows the SCREE Powell 150 expdition camp at Big Pine Campground in Red Canyon of the Green River, Utah. The large green tarp was set up to keep the kitchen area and campers dry. Two very large ponderosa pines are in the center of camp, and surely were witness to the 1869 Powell expedition.

The photo shows the SCREE Powell 150 expdition camp at Big Pine Campground in Red Canyon of the Green River, Utah. The large green tarp was set up to keep the kitchen area and campers dry. Two very large ponderosa pines are in the center of camp, and surely were witness to the 1869 Powell expedition.

Brillant sunset at Little Swallow Campsite on the Green River
Sunset at Little Swallow Campsite, Green River (UT)
Sunset at Little Swallow Campsite, Green River (UT)
Open grassy landscape and distant mountains of Browns Park Waterfowl Management Area as seen from the Green River
Scenery of Browns Park from the Green River
Scenery of Browns Park from the Green River
Scenery of Browns Park from the Green River

Open grassy landscape and distant mountains of Browns Park Waterfowl Management Area as seen from the Green River

Open grassy landscape and distant mountains of Browns Park Waterfowl Management Area as seen from the Green River

View looking upstream at a small tributary stream in flood, contributing water and sediment to the Green River in Red Canyon.
A small tributary adding water and sediment to the Green River, Red Ca
A small tributary adding water and sediment to the Green River, Red Ca
A small tributary adding water and sediment to the Green River, Red Ca

This photo displays the contrast between the clear, sediment-starved waters released from a large dam, and the murky, sediment-rich waters of natural tributaries. The tributary is just one of many that gradually re-supply the river with sediment.

This photo displays the contrast between the clear, sediment-starved waters released from a large dam, and the murky, sediment-rich waters of natural tributaries. The tributary is just one of many that gradually re-supply the river with sediment.

The Green river is in the foreground with Flaming Gorge Dam in the background and the road running to the boat launch.
Immediately downstream of Flaming Gorge Dam
Immediately downstream of Flaming Gorge Dam
Immediately downstream of Flaming Gorge Dam

View looking upstream at Flaming Gorge Dam from the boat launch area

Yellow Warbler in Grass along Green River
Yellow Warbler
Yellow Warbler
Yellow Warbler

Yellow Warbler in Grass along Green River

Yellow Warbler in Grass along Green River

View downriver of Powell Expedition boats on the Green River in Red Canyon on a cold, rainy day.
Boats on Green River in Red Canyon (UT)
Boats on Green River in Red Canyon (UT)
Boats on Green River in Red Canyon (UT)

View downriver of Powell Expedition boats on the Green River in Red Canyon on a cold, rainy day.

View looking downstream of the Flaming Gorge Dam. Photo taken from hiking trail along Green River.
Green River Downstream of Flaming Gorge Dam
Green River Downstream of Flaming Gorge Dam
Green River Downstream of Flaming Gorge Dam

View looking downstream from just below the boat launch at Flaming Gorge Dam.

Boatmen's sleeping quarters at Big Pine in Red Canyon on the Green River
Camping on the boats
Camping on the boats
Camping on the boats

Boatmen's sleeping quarters at Big Pine in Red Canyon on the Green River

Boatmen's sleeping quarters at Big Pine in Red Canyon on the Green River

Color photograph shows a close up photo of a clump of flowers called Desert Paintbrush.
Clump of scarlet desert paintbrush at Flaming gorge dam
Clump of scarlet desert paintbrush at Flaming gorge dam
Clump of scarlet desert paintbrush at Flaming gorge dam

Desert paintbrush stands out against the yellows and browns of the desert by way of its bright red and fiery coloring. Desert paintbrush is a hemiparasite, and takes some of its water and nutrients from the roots of nearby plants. However, unlike full parasites, desert paintbrush can still photosynthesize to obtain some of its nutrients if needed.

Desert paintbrush stands out against the yellows and browns of the desert by way of its bright red and fiery coloring. Desert paintbrush is a hemiparasite, and takes some of its water and nutrients from the roots of nearby plants. However, unlike full parasites, desert paintbrush can still photosynthesize to obtain some of its nutrients if needed.

Jessica Flock rowing her 18-foot expedition raft  in the rain across a long pool in Red Canyon of the Green River.
SCREE boatwoman rowing Red Canyon in the rain
SCREE boatwoman rowing Red Canyon in the rain
SCREE boatwoman rowing Red Canyon in the rain

This photo demonstrates one of the challenges of down-river boating in the Colorado River system.

A blue UV light shines on a pool of ethanol in an rectangular container in the dark.
Bat call and insect data collection in Red Canyon.
Bat call and insect data collection in Red Canyon.
Bat call and insect data collection in Red Canyon.

This photo demonstrates the typical set up of the so-called 'bat-and-bug' citizen science data collection platform used on the SCREE - Powell 150 expedition. The UV light attracts bugs to the pool of ethanol, where they land and are preserved for identification, while the touchpad device has an untrasonic microphone to collect bat calls.

This photo demonstrates the typical set up of the so-called 'bat-and-bug' citizen science data collection platform used on the SCREE - Powell 150 expedition. The UV light attracts bugs to the pool of ethanol, where they land and are preserved for identification, while the touchpad device has an untrasonic microphone to collect bat calls.

Day 5 scenic view of Sheep Canyon
View of Sheep Canyon
View of Sheep Canyon
View of Sheep Canyon

Day 5 scenic view of Sheep Canyon

Day 4 first sighting of Flaming Gorge, Utah
Flaming Gorge NRA
Flaming Gorge NRA
Flaming Gorge NRA

Day 4 first sighting of Flaming Gorge, Utah

Day 4 first sighting of Flaming Gorge, Utah

Day 4 first sigting of Flaming Gorge, Utah
Flaming Gorge NRA
Flaming Gorge NRA
Flaming Gorge NRA

Day 4 first sigting of Flaming Gorge, Utah

Day 4 first sigting of Flaming Gorge, Utah

Day 4 rafts at campground
Rafts at campground
Rafts at campground
Rafts at campground

Day 4 rafts at campground

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