Images

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

The new Hydrologic Instrumentation Facility (HIF) on the University of Alabama Campus at Tuscaloosa, AL. The new facility is a national USGS capability that includes:

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

USGS employees surface water sampling during evening monsoon storm in July 2024 at Adobe Acres Inflow at Albuquerque, New Mexico – USGS-350100106410810.

Photograph of stormwater outfall sampling location, Alameda Pump Station Outflow – USGS-351146106382801

View of tilting flume from the catwalk above the hydraulics laboratory at the USGS Hydrologic Instrumentation Facility.

Person standing inside the walk-in temperature chamber at the Hydrologic Instrumentation Facility.

Wet chemistry lab under construction at the USGS Hydrologic Instrumentation Facility.

The hydraulics lab at the USGS Hydrologic Instrumentation Facility, complete with tow tank, tilting flume, and wave-generating test basin, near completion in June 2024.

Lake Abert, Oregon is one of the 20 terminal lakes identified by USGS partners as priority ecosystems for study by the Saline Lakes Ecosystems IWAA.

USGS Water and Fire Technicians team members, Jorge Gonzalez and Efren Alvarado, made repairs to the Buck Mountain precipitation gage during the Blue 2 Fire near Alto, New Mexico on June 7, 2024. This station, along with similar gages, provides critical real-time rainfall data to the National Weather Service and local emergency managers.

This map shows the intricate fluvial landforms (e.g., meanders, relic stream channels, meander cutoffs) of Beaver Creek, Liberty County, MT. Relative elevation models show elevation of a landscape relative to the elevation of an adjacent river.

Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.

A member of the USGS Water and Fire Technicians Team repairs a streamgage during the Blue 2 Fire near Alto, New Mexico. 

The USGS Water and Fire Technicians Team prepares to evaluate precipitation and streamflow gauges during the Blue 2 Fire near Alto, New Mexico. 

Goose Lake, on the Oregon-California border, is one of the 20 terminal lakes identified by USGS partners as priority ecosystems for study by the Saline Lakes Ecosystems IWAA. 

USGS scientists out on the Mississippi River above Vicksburg use a D-99 sampler to collect sediment and water-quality samples from the large inland river.