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Rigging the boats on chilly desert mornings is a slow affair. All our food and gear must be sorted, distributed and carefully packed among the six rafts to be able to accommodate its passengers and so it can all be easily found again when we reach our evening camp.
Rigging the boats on chilly desert mornings is a slow affair. All our food and gear must be sorted, distributed and carefully packed among the six rafts to be able to accommodate its passengers and so it can all be easily found again when we reach our evening camp.
Team D enters the middle of the Uinta basin on Day 2, with Split Mountain still visible. The flow of the river greatly increased that day due to a controlled release at Flaming Gorge Dam. The high flow is meant to carry the larvae of an endangered species of sucker fish into bordering wetlands, where the larvae can grow under more protected conditions.
Team D enters the middle of the Uinta basin on Day 2, with Split Mountain still visible. The flow of the river greatly increased that day due to a controlled release at Flaming Gorge Dam. The high flow is meant to carry the larvae of an endangered species of sucker fish into bordering wetlands, where the larvae can grow under more protected conditions.
Sampling pre-emergent aquatic insects is not always easy, especially on a river with little cobble substrate. Because of the high water from dam release, a lot of floating driftwood was making its way down river. We are testing a new method to sample this substrate for benthic invertebrates to examine questions of species diversity, dispersal and habitat use.
Sampling pre-emergent aquatic insects is not always easy, especially on a river with little cobble substrate. Because of the high water from dam release, a lot of floating driftwood was making its way down river. We are testing a new method to sample this substrate for benthic invertebrates to examine questions of species diversity, dispersal and habitat use.
Synchrotron X-Ray microtomography 3D image (a) and cathodoluminescence slice (b) from the same reentrant-bearing quartz crystal from the Lava Creek Tuff. The reentrants are in darker blue in (a) and the black cavities in (b). Note their relationship to quartz growth bands. Red domains are small magnetite crystals.
Synchrotron X-Ray microtomography 3D image (a) and cathodoluminescence slice (b) from the same reentrant-bearing quartz crystal from the Lava Creek Tuff. The reentrants are in darker blue in (a) and the black cavities in (b). Note their relationship to quartz growth bands. Red domains are small magnetite crystals.
One of the ongoing experiments on the expedition is a bioacoustic survey monitor, which will parse recorded nighttime sounds into species and numbers of individuals. Here Tom Minckley explains it to USGS scientists Mitch Eaton, Jamie Delano, and John Parks.
One of the ongoing experiments on the expedition is a bioacoustic survey monitor, which will parse recorded nighttime sounds into species and numbers of individuals. Here Tom Minckley explains it to USGS scientists Mitch Eaton, Jamie Delano, and John Parks.
The sediment sampling project was intended to provide insight into the presence of microplastics in the Colorado River basin. Samples were collected at every campsite that had an adequate supply of sand.
The sediment sampling project was intended to provide insight into the presence of microplastics in the Colorado River basin. Samples were collected at every campsite that had an adequate supply of sand.
In high-flow conditions, Team D took off from Split Mountain campground in 6 rafts. Split Mountain is shown in the background.
In high-flow conditions, Team D took off from Split Mountain campground in 6 rafts. Split Mountain is shown in the background.
Bill Burton with Paper Powell and (I think??) the first female geologist at USGS.
Bill Burton with Paper Powell and (I think??) the first female geologist at USGS.
For Team D, this was our first morning on the river, putting-in at Split Mountain campground in Dinosaur Nat'l Monument. The whole group was very excited as none of the expedition members had ever rafted this section of the Green River.
For Team D, this was our first morning on the river, putting-in at Split Mountain campground in Dinosaur Nat'l Monument. The whole group was very excited as none of the expedition members had ever rafted this section of the Green River.
Mitch Eaton pictured with “Paper Powell” just before embarking on his five-day journey on the Colorado River.
Mitch Eaton pictured with “Paper Powell” just before embarking on his five-day journey on the Colorado River.
Biological Technician, Laura (Laney) White records data on Beaufort sea state and environmental conditions during a flight.
Biological Technician, Laura (Laney) White records data on Beaufort sea state and environmental conditions during a flight.
The Powell150 team’s boats stocked with gear and ready to set down the river.
The Powell150 team’s boats stocked with gear and ready to set down the river.
This animation takes the viewer down the Glen Canyon from Bullfrog Bay to the Rincon, in the Glen Canyon National Recreation Area. New high resolution multibeam bathymetry collected by the USGS in 2018 shows the submerged portions of Glen Canyon.
This animation takes the viewer down the Glen Canyon from Bullfrog Bay to the Rincon, in the Glen Canyon National Recreation Area. New high resolution multibeam bathymetry collected by the USGS in 2018 shows the submerged portions of Glen Canyon.
USGS researchers are studying how enhancing moss growth may lead to improved practices to restore soil biocrusts.
USGS researchers are studying how enhancing moss growth may lead to improved practices to restore soil biocrusts.
To make America’s economy and defense more secure, the Administration has released “A Federal Strategy to Ensure Secure and Reliable Supplies of Critical Minerals.” Among other roles, these mineral commodities are vital to renewable energy infrastructure like solar panels, wind turbines, and batteries.
To make America’s economy and defense more secure, the Administration has released “A Federal Strategy to Ensure Secure and Reliable Supplies of Critical Minerals.” Among other roles, these mineral commodities are vital to renewable energy infrastructure like solar panels, wind turbines, and batteries.
The Uinta Basin represents an area of high productivity for agriculture, ranching and fossil fuel exploration. Recreational activities such as rafting share this landscape with wildlife and industry.
The Uinta Basin represents an area of high productivity for agriculture, ranching and fossil fuel exploration. Recreational activities such as rafting share this landscape with wildlife and industry.
Hydrologist Nora Nelson swapping passive charcoal samplers in a carbonate spring during a fluorescein dye tracer test Great Basin National Park. Station number 385254114114801 Spring BW2 in the South Fork of Big Wash, Great Basin National Park, NV
Hydrologist Nora Nelson swapping passive charcoal samplers in a carbonate spring during a fluorescein dye tracer test Great Basin National Park. Station number 385254114114801 Spring BW2 in the South Fork of Big Wash, Great Basin National Park, NV
The Marsh Arabs of southeastern Iraq have spent millennia traversing the waterways at the confluence of the Tigris and Euphrates rivers. The recent history of those wetlands, however, has been one of forced loss and uneven recovery.
The Marsh Arabs of southeastern Iraq have spent millennia traversing the waterways at the confluence of the Tigris and Euphrates rivers. The recent history of those wetlands, however, has been one of forced loss and uneven recovery.
Kanakee River at Davis, IN - gage house side view
Kankakee River at Davis, IN - side view of gage on bridge
Kankakee River at Davis, IN - side view of gage on bridge
Kentucky River at Lock 2 at Lockport KY - gage house
Kentucky River at Lock 2 at Lockport KY - gage house