Images

USGS Hydrologist is looking at a headcut/headward erosion/knickpoint in thr center-right of photo during field effort to verify geomorphic mapping.

When Fern Ridge Lake levels are low the Long Tom River can be seen meandering through the reservoir. Check out the USGS water elevation gage at Fern Ridge Lake Near Elmira, OR - 14168000.

Morgan, an Oregon Water Science Center hydrologic technician stands under a rainbow during field work at the South Santiam River near Foster, OR streamflow gage (14187200).

Multispectral camera system on Cessna 182 aircraft. Aerial imagery was collected to support research efforts within the Willamette River Integrated Water Science basin as part of the USGS Next Generation Water Observing System (NGWOS).

Temperature logger attached to submerged cobble in Quartzville Creek, OR. This logger was placed as part of an ongoing effort to retrieve continuous temperature data from rivers and tributaries within the Willamette River basin, OR.

Hydrologist, Rod Owre, uses an acoustic doppler current profiler to measure the speed and direction of water currents using sound waves.

White Salmon River near Underwood, Washington (14123500). Photo taken by Adam Ostman, hydrologic technician, during a routine site visit. The streamgage is the small square building on the right river bank.

An acoustic doppler current profiler (ADCP) is attached to a bank mounted cable way so it can be pulled across the channel to measure the river flow. White Salmon River Near Underwood, Washington (14123500).

A piezometer is a device used to measure the pressure of a liquid, particularly water, within a specific point of a system, such as soil, rock, or a pipe. It is widely used in geotechnical, hydrogeological, and civil engineering applications to monitor water levels, pore water pressure, and hydraulic head in the ground or other systems.

Benthic cyanobacteria are a type of photosynthetic bacteria that live on the bottom of aquatic environments, such as lakes, rivers, oceans, and wetlands. The term "benthic" refers to their habitat in the sediment or substrate of these water bodies, as opposed to being free-floating in the water column (planktonic).

Water quality readings, like temperature and dissolved oxygen, are taken during field visits at Bethany Lake.

The concrete weir that impounds Bethany Lake was constructed in the 1950's  to provide irrigation for Rock Creek Golf Course.

Rock Creek flows north to south in Washington County, Oregon and is a tributary of the Tualatin River.

The U.S. Geological Survey (USGS) operates several streamgages and monitoring stations throughout the Bull Run watershed. These data play a critical role in water supply management, safety, and science.

A hydrophone installation along the McKenzie River records 1-minute audio files of water and any bedload being moved by the current.

North Santiam River near Marion Forks (14174450). The U.S. Geological Survey monitors monitors water level, water temperature and air temperature at this location.

Middle Fork Willamette below Mac Creek near Oakridge (14144780). The U.S. Geological Survey monitors water temperature at this location.

Collowash River near Breitenbush (14208300). The U.S. Geological Survey monitors water level, water temperature, and air temperature at this location.

Lost Creek above Yale Lane near Belknap Springs (14158977). The U.S. Geological Survey monitors water level and water temperature at this location.

Small hydrophones like this one are deployed in the North Santiam and McKenzie Rivers in Oregon to monitor the sounds associated with river bedload transport.

Breitenbush River below Breitenbush Hot Springs, OR - 14178610. U.S. Geological Survey Oregon Water Science Center has a streamflow gage at this location that monitors gage height and water temperature.