Images

Adult and juvenile beaver near Windrose, Oregon

Rock with mat of Phormidium cyanobacteria circled by "rock snot" stalked diatoms. Phormidium is common in western rivers and produces neurotoxins including anatoxins that are highly toxic to dogs, humans, and other wildlife.

Microscopic view of blue green algae sample. Some algae produce toxins that threaten the health and safety of living things that come in direct contact. Cyanobacteria - Dolichospermum (blue green algae)

Beaver along bank of pond in Tualatin River Basin, OR

This dragonfly is called a Cardinal Meadowhawk.

Algal bloom in WIllow Creek Reservoir, Oregon, taken during a photointerpretive study of the lake.

View of the Willow Creek Reservoir near Heppner, OR

Beaver swimming in Summer Lake, Oregon.

Beaver eating at Summer Lake, OR

Beaver swimming in Summer Lake, OR

Rough skin newt just below the surface of a wetland pond in the Tualatin River Basin, Oregon.

Hydrologic technician Sylas Daughtrey works at a gagehouse on Columbia River at Stevenson, Washington

Trask River stage, discharge, and water-quality data are collected and used together to help monitor the current health of the river. Instream equipment is stored in protective housing to protect it from the elements. Data from the river are sent to equipment in the gage house, where it is stored then transmitted to USGS servers.

A U.S. Geological Survey hydrologist collects a water sample from the Williamson River below Chiloquin, Oregon. The sample was analyzed as part of a water-quality study the USGS conducted in cooperation with the U.S. Bureau of Reclamation and the Klamath Tribes.

Scenic view from Siuslaw National Forest, OR.

USGS scientist completing a stream assessement of West Fork Palmer Creek, Oregon.

Photograph of field gear and equipment used in water quality monitoring.

USGS hydrologist working in the field.

An agriculture field in the upper floodplain of the Willamette Valley near Junction City, Oregon.

A U.S. Geological Survey streamflow gaging station collects water data on the Trask River. The Trask River gage is located near Tillamook, Ore. and has been in operation for 17 years.  

Trask River stage, discharge, and water-quality data are collected and used together to help monitor the current health of the river. Data from the river are sent to equipment in the gage house, where it is stored then transmitted to USGS servers.