Images

Day 4 sandstone formations

Day 4 soil sampling

Day 3 soil sampling

Day 2 soil sampling

Day 2 tent at dawn

Day 3 Tent with buttes at dawn

Looking downstream from U.S. Highway 62 bridge at the widespread flooding and backwater conditions on the Arkansas River near Muskogee, Oklahoma, May 31, 2019.

U.S. Geological Survey Open-File Report 2020–1090

Day 5 USGS cableway

Members of USGS Team B and paper Powell sharing a moment at the end of their 4-day river journey at the Gates of Lodore

Day 2 Rusty looking towards Firehole public use area

View towards town of Green River from scenic overlook

Day 5 SCREE Bailey Edward taking wet photo

The yellow raft of SCREE expedition leader, Tom Minckley, floating through calm waters of Browns Park National Wildlife Refuge, Colorado. The far bank in the midground of the photo are the exposed sediments of the pre-dam floodplain of the Green River. The layers of rock in the background are the exposed layers of the red Uinta Mountain Group quartzite.

A close-up of the water ponds at the bottom of Halema‘uma‘u, using a zoom lens on the thermal camera. The smaller hot patches above the main pond show areas of warm water in the smaller ponds.

Staff from the USGS Great Lakes Science Center gaze at the Mackinac Bridge rising above the mist in the Straits of Mackinac, Michigan. The lines they are holding are attached to grappling hooks being used to retrieve acoustic telemetry equipment anchored on the bottom of the straits.

A group of cliff swallow nests made from mud in the river in Swallow Canyon. Many of the nests have birds in them and can be identified by their yellow beaks sticking out.

The water level continues to slowly rise at the bottom of Halema‘uma‘u, resulting in enlargement and merging of the small ponds. Today, the second and third ponds (top of image) observed over the weekend have merged, and are nearly connected to the main pond (bottom of image). For scale, the main pond is about 15 meters (yards) wide.

Cuyahoga River at Independence OH - 2018 high water mark

Cuyahoga River at Independence OH - flood water in gage house

View looking downstream at the red sandstone walls of Swallow Canyon. This small canyon is one of two canyons that divide Browns Park into series of intermittent alluvial-meandering and bedrock canyon segments. Unlike Red Canyon and Lodore Canyon, the slope of Swallow Canyon is not controlled by debris flows, and thus does not have any rapids.

A close-up of a bald eagle hanging out on a cliff along the Green River in swallow canyon