Images

Ellerbe Creek, Durham, NC
 

USGS scientist sampling water in Klamath Lake.

USGS scientist recording at Ellerbe Creek, Durham, NC

USGS scientists monitor the water quality off a bridge near Sedgwick, Kansas. A new USGS study shows that water quality on the Little Arkansas River and in the Equus Beds aquifer has not substantially changed since 2007 recharge activities began in the Equus Beds aquifer.

Insect traps in a wetland in North Dakota's Prairie Pothole region. The wetlands studied are in Southeast/Central ND - Stutsman and Kidder counties, ND in grassland and on farms. 

Invertebrate sampling in Lake Ontario by Great Lakes Coastal Wetland Monitoring field crew.

Scientists tend to insect traps in the wetlands of the Prairie Pothole region on North Dakota. They are all wetlands in Southeast/Central ND - Stutsman and Kidder counties, ND in grassland and on farms. 

Scientists work on insect traps in the Prairie Pothole region of North Dakota. This work was done in the wetlands in Southeast/Central ND - Stutsman and Kidder counties, ND in grassland and on farms. 

Cyanobacterial blooms, such as the one shown that occurred in 2016 on Lake Okeechobee, Florida, can release toxins.

Jamey Jones collects a sample of Talkeenta Formation volcaniclastic sandstone for detrital zircon geochronology. 

USGS research geologists Jamey Jones (left) and Erin Todd (right) discuss the "big picture" geology in their project area in and around Lake Clark National Park. Redoubt volcano in background left; baseball-sized cobbles on ground at researchers feet are pumice cobbles from the 2009(?) eruption of Redoubt volcano. 

Cyanobacterial bloom in Lake Okeechobee, FL.

A 31-mm sturgeon captured in the Missouri River near Williston, North Dakota, on July 8 using a beam trawl. Sampling efforts occurred in support of a recent inter-agency collaborative drift experiment involving 700,000 sturgeon embryos. This sturgeon will be genetically test to see if it is from those used for the experiment.

Filling the teflon churn with water sampled from Laramie River near Laramie

A scenic of Cabin Bay on Naked Island in Prince William Sound

Juvenile steelhead smolts become silvery and scales become loose as they transition into their seawater life history stages.

This map of Kīlauea Volcano's lava flow shows the locations of Hawai‘i County's designated lava-viewing and parking areas (http://www.hawaiicounty.gov/lava-viewing/), as well as the lava flow's location relative to the Hawai‘i Volcanoes National Park boundary (green line).

As Kīlauea Volcano's active pāhoehoe flow spreads across the coastal plain on July 6, the new lava appeared more shiny or silvery compared with the older lava beneath it. Molten "toes" of lava breaking out from the leading edges of the flow can be seen in the lower right quadrant of the photo. USGS photo.

USGS - NOROCK field team in the Northern Cascades studying Hoary marmots and American pika and snowpack dynamics.  

Schools (shadows along the shore) of Pacific sand lance in Cabin Bay, Prince William Sound

Three Arctic Terns sitting on a log floating in the water in Prince William Sound.