The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume. This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river. Two large dams on the Elwha River are being incrementally r
Images
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![View from the sky looking inland at a river mouth that is flowing into open waters heavily laden with sediment in contrast.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/IMG2403_clip.jpg?itok=XZHFYJiu)
The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume. This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river. Two large dams on the Elwha River are being incrementally r
Barred owls (Strix varia) have expanded their geographic range from eastern to western North America. Their newly expanded range now completely overlaps that of the federally threatened northern spotted owl (S. occidentalis caurina).
Barred owls (Strix varia) have expanded their geographic range from eastern to western North America. Their newly expanded range now completely overlaps that of the federally threatened northern spotted owl (S. occidentalis caurina).
![sleet storm over sagebrush habitat](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/7575.jpg?itok=pvrZ_HaC)
A sleet storm approaches the sagebrush habitat at the south end Stinkingwater Mountians near Warm Springs Reservoir in eastern Oregon
A sleet storm approaches the sagebrush habitat at the south end Stinkingwater Mountians near Warm Springs Reservoir in eastern Oregon
Methow River near Winthrop, WA in fall of 2011. USGS researchers are creating a decision support model to help the BLM determine how alternative restoration strategies might affect threatened salmon and steelhead fish populations.
Methow River near Winthrop, WA in fall of 2011. USGS researchers are creating a decision support model to help the BLM determine how alternative restoration strategies might affect threatened salmon and steelhead fish populations.
Two USGS scientists set up equipment to measure sagebrush in a common garden experiment in the Great Basin, Idaho
Two USGS scientists set up equipment to measure sagebrush in a common garden experiment in the Great Basin, Idaho
Filtering stream water to collect environmental DNA from stream amphibians
Filtering stream water to collect environmental DNA from stream amphibians
Collecting a 1-liter water sample in the Boise River for eDNA analysis (Boise, ID)"
Collecting a 1-liter water sample in the Boise River for eDNA analysis (Boise, ID)"
A western grebe in Summer Lake, a saline lake in Oregon that is an important habitat for waterbirds. The grebe was photographed during a survey of waterbird nesting colonies.
A western grebe in Summer Lake, a saline lake in Oregon that is an important habitat for waterbirds. The grebe was photographed during a survey of waterbird nesting colonies.
An American avocet wading in Summer Lake, a saline lake in Oregon. Summer Lake is an important habitat for migratory water birds.
An American avocet wading in Summer Lake, a saline lake in Oregon. Summer Lake is an important habitat for migratory water birds.
A long-billed curlew wading in the Summer Lake Wildlife Area. Summer Lake is a saline lake in Oregon that is an important habitat for waterbirds.
A long-billed curlew wading in the Summer Lake Wildlife Area. Summer Lake is a saline lake in Oregon that is an important habitat for waterbirds.
Dry wetlands around Summer Lake photographed during a drought in 2011. Summer Lake is a saline lake in Oregon that is an important habitat for waterbirds.
Dry wetlands around Summer Lake photographed during a drought in 2011. Summer Lake is a saline lake in Oregon that is an important habitat for waterbirds.
![Wetland habitats, such as the Great Salt Lake wetlands, provide critical feeding areas for many fish and wildlife species.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Eagles-Smith_GreatSaltLake-wetland.jpg?itok=EcO_4jME)
Wetland habitats, such as the Great Salt Lake wetlands, provide critical feeding areas for many fish and wildlife species.
Wetland habitats, such as the Great Salt Lake wetlands, provide critical feeding areas for many fish and wildlife species.
Frozen fish samples awaiting mercury analysis
Frozen fish samples awaiting mercury analysis
Rogue River canyon in southwest Oregon
Rogue River canyon in southwest Oregon
Idaho giant salamander as seen from above
Idaho giant salamander as seen from above
Blossom Bar on Rogue River in southern Oregon
Blossom Bar on Rogue River in southern Oregon
Side view of Brewer's sparrow (Spizella breweri) in USGS field worker's hand.
Side view of Brewer's sparrow (Spizella breweri) in USGS field worker's hand.
Back view of Brewer's sparrow (Spizella breweri) in USGS field worker's hand.
Back view of Brewer's sparrow (Spizella breweri) in USGS field worker's hand.
Brewer's sparrow (Spizella breweri) wing spread close up.
Brewer's sparrow (Spizella breweri) wing spread close up.
Two Brewer's sparrow (Spizella breweri) chicks and one egg in nest, Steens Mountain, SE Oregon.
Two Brewer's sparrow (Spizella breweri) chicks and one egg in nest, Steens Mountain, SE Oregon.
Two Brewer's sparrow (Spizella breweri) chicks and one egg in nest, Steens Mountain, SE Oregon.
Two Brewer's sparrow (Spizella breweri) chicks and one egg in nest, Steens Mountain, SE Oregon.