Images

Hydrologic Technician, Will Ault, examines a water quality sensor in the Klamath River during a routine inspection. 

Klamath Falls Field Office Hydrologic Technician collects a streamflow measurement on the Chewaucan River at Mouth near Valley Falls, OR (10387110). The Chewaucan River flows into Lake Abert, OR.

Pulling measurement equipment through shallow waters on the banks of the Chewaucan River.

Hydrologic Technician, Ali Moss, measures a shallow spring fed channel at Lake Abert, Oregon. Lake Abert is one of the 20 plus terminal lakes identified by USGS partners as priority ecosystems for study by the Saline Lakes Ecosystems IWAA.

Hydrologic Technician, Ali Moss, installs a radar unit on a large boulder in the shallow water of Lake Abert, OR. The radar unit records the water level in near real-time at this saline lake.

In 1996 the USGS Water Resources Division (now called Water Mission Area) received Vice President Gore's Hammer Award. It was presented by Assistant Secretary for Water and Science, Patricia Beneke, at the Carnegie Center in Oregon City, Oregon, with Dennis Lynch, District Chief, Oregon, accepting on behalf of the Division.

Monitoring location on the North Santiam River near Marion Forks, OR (14174450). 

USGS Hydrologic Technicians captured this aerial image above Marys River during the December 2025 flood event. 

Downstream view of Shitike Creek near Warm Springs, Oregon. This gage is operated in partnership with the Confederated Tribes of the Warm Springs Reservation's Natural Resources Department.

Oregon Water Science Center Hydrologic Technicians, Ben Thorpe, Kyle Flannery, and Itziar Zandueta Lopez, measured high flows on the Mohawk River Near Springfield, OR (14165000), concurrently using an Acoustic Dopple

Oregon Water Science Center Eugene Field Office Hydrologic Technician Itziar Zandueta Lopez, measuring high-flows at Mohawk River Near Springfield, OR (14165000) concurrently using an Acoustic Doppler Current Profile

USGS scientist, wearing a personal protection device, or PFD, surveys water levels and debris line on the Clackamas River, Milo McIver park boat ramp. These measurements are used to validate a 2D hydraulic model of the Clackamas River.

USGS scientist, wearing a personal protection device, or PFD, surveys water levels and debris line on the Clackamas River, Milo McIver park boat ramp. These measurements are used to validate a 2D hydraulic model of the Clackamas River.

Field technicians braved the flooded park to collect critical streamflow measurements nearby. The Luckiamute River Near Suver, OR (# 14190500) is operated in cooperation with the US Army Corps of Engineers and is a USGS Federal Priority Streamgage.

In December 2025 USGS field crews captured photos of Clackamas River flooding at Barton Park while surveying the scale of the flood.

High-flows on the Clackamas River seen from the Carver Bridge, in Carver Oregon.

USGS Hydrologic Technicians captured this aerial image with a drone during field. The USGS Oregon Water Science Center operates a streamflow gaging station nearby on the Luckiamute River.

A view from the cableway while measuring high flow at the Sandy River near Marmot gaging station (14137000).

Hydrologic technicians Adam and Vanessa make a flow measurement using an acoustic doppler current profiler (ADCP). The ADCP is tethered to a rope and is pulled across the channel so it can collect channel depth and flow velocity measurements. The technicians did a great job getting a measurement close to the peak flow at this site on December 19, 2025.

Oregon Water Science Center Eugene Field Office Hydrologic Technicians, Ben Thorpe, Kyle Flannery, and Itziar Zandueta Lopez, measured high-flows at Mohawk River Near Springfield, OR - USGS-14165000 concurrently usin

Rising waters near the USGS streamflow gage along Hood River.