USGS river gage at Hickson, ND along the Red River of the North.
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USGS river gage at Hickson, ND along the Red River of the North.
Diatoms are algae that reflect the biotic condition of streams, lakes and estuaries. Diatoms are important indicator organisms because they are sensitive to natural and human impacts, and monitoring their condition provides information about ecosystem health. A large, living Pleurosira laevis cell has many disc shaped chloroplasts.
Diatoms are algae that reflect the biotic condition of streams, lakes and estuaries. Diatoms are important indicator organisms because they are sensitive to natural and human impacts, and monitoring their condition provides information about ecosystem health. A large, living Pleurosira laevis cell has many disc shaped chloroplasts.
The Cannonball River at Breien, ND looking East.
The Cannonball River at Breien, ND looking East.
The Cannonball River opening up at Breien, ND.
The Cannonball River opening up at Breien, ND.
Cannonball River at Breien, ND from the east side of Highway 6 bridge.
Cannonball River at Breien, ND from the east side of Highway 6 bridge.
A bridge board and current meter being used to measure the streamflow on Pembina River at Neche, ND.
A bridge board and current meter being used to measure the streamflow on Pembina River at Neche, ND.
Weather Station on Tern Island in the middle of Crump Lake protected by bird spikes.
Weather Station on Tern Island in the middle of Crump Lake protected by bird spikes.
Work Continues even when Silvies River is about to flood over the bridge.
Our datalogger is attached to the bridge and much to our surprise, a dump truck drives across the bridge as we were contemplating the safety of crossing on foot.
Work Continues even when Silvies River is about to flood over the bridge.
Our datalogger is attached to the bridge and much to our surprise, a dump truck drives across the bridge as we were contemplating the safety of crossing on foot.
Employee collectiing Water Quality data with instrument YSI 556mps handheld in creek swollen from spring melt.
Employee collectiing Water Quality data with instrument YSI 556mps handheld in creek swollen from spring melt.
Storm clouds moving in over the park.
Storm clouds moving in over the park.
Multiple generations of Salish Sea Tribal members land at the Swinomish Indian Reservation.
Multiple generations of Salish Sea Tribal members land at the Swinomish Indian Reservation.
Arrival of Salish Sea Tribal Canoes with USGS water quality sampling instrumentation onboard.
Arrival of Salish Sea Tribal Canoes with USGS water quality sampling instrumentation onboard.
The Souris River at Westhope, North Dakota. The top photos taken on April 26, 1970, with a discharge of 1,110 cfs. And the bottom photo taken on April 19, 2011, with a discharge of 13,300 cfs and a gage height of 19.82 feet.
The Souris River at Westhope, North Dakota. The top photos taken on April 26, 1970, with a discharge of 1,110 cfs. And the bottom photo taken on April 19, 2011, with a discharge of 13,300 cfs and a gage height of 19.82 feet.
Adelaide Baker returns from sampling water at Harney Lake, a shallow alkali lake, in Malheur National Wildlife Refuge.
Adelaide Baker returns from sampling water at Harney Lake, a shallow alkali lake, in Malheur National Wildlife Refuge.
Solomon Gulch Top of Falls gage house in spring.
Solomon Gulch Top of Falls gage house in spring.
Hydrographer C.S. Couvillion drilling Willow Creek for ice discharge measurement.
Hydrographer C.S. Couvillion drilling Willow Creek for ice discharge measurement.
Hydrogeologists examining the Garber-Wellington aquifer and Hennessey Shale confining unit contact near Arcadia Lake, Oklahoma.
Hydrogeologists examining the Garber-Wellington aquifer and Hennessey Shale confining unit contact near Arcadia Lake, Oklahoma.
USGS Hydrologists using the USGS Well Flowmeter and Downhole Sampler on a well in Moore, Oklahoma. More info can be found in Fact Sheet 2005-3111 (PDF).
USGS Hydrologists using the USGS Well Flowmeter and Downhole Sampler on a well in Moore, Oklahoma. More info can be found in Fact Sheet 2005-3111 (PDF).
Buoys are attached to trotlines deployed in the Lower Missouri River.
Buoys are attached to trotlines deployed in the Lower Missouri River.
Red River of the North at Halstad, Minnesota, on April 1, 2011, just prior to ice breaking up.
Red River of the North at Halstad, Minnesota, on April 1, 2011, just prior to ice breaking up.
Flooded gaging station on the Souris River near Westhope, North Dakota, April 20, 2011. See other pictures in this gallery with the tag 05124000 to see what the gage house normally looks like - it is on a raised platform on the bank of the river with an access road next to it.
Flooded gaging station on the Souris River near Westhope, North Dakota, April 20, 2011. See other pictures in this gallery with the tag 05124000 to see what the gage house normally looks like - it is on a raised platform on the bank of the river with an access road next to it.