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Green River at Spottsville,KY - lock view from bridge
Green River at Spottsville,KY - lock view from bridge
Green River at Spottsville,KY - lock view from bridge
Green River at Spottsville,KY - lock view from bridge

Green River at Spottsville,KY - lock view from bridge, during flood waters - March 2015.

Green River at Spottsville,KY - lock view from bridge, during flood waters - March 2015.

Gage Construction-Green River at Lock 1 at Spottsville, KY
Gage Construction-Green River at Lock 1 at Spottsville, KY
Gage Construction-Green River at Lock 1 at Spottsville, KY
Gage Construction-Green River at Lock 1 at Spottsville, KY

Gage Construction-Green River at Lock 1 at Spottsville, KY in 2013.

Green River at Spottsville, KY - March 2015 high water
Green River at Spottsville, KY - February 2015 high water
Green River at Spottsville, KY - February 2015 high water
Green River at Spottsville, KY - February 2015 high water

Green River at Spottsville, KY - February 2015 high water

Green River at Spottsville, KY - March 2015 high water
Green River at Spottsville, KY - February 2015 high water
Green River at Spottsville, KY - February 2015 high water
Green River at Spottsville, KY - February 2015 high water

Green River at Spottsville, KY - February 2015 high water

Green River at Spottsville, KY - flooded property March 2015
Green River at Spottsville, KY - flooded property March 2015
Green River at Spottsville, KY - flooded property March 2015
Green River at Spottsville, KY - flooded property March 2015

Green River at Spottsville, KY - flooded property March 2015

(grey-colored rock) Cherry Valley shale
Marcellus shale in central New York showing Cherry Valley limestone
Marcellus shale in central New York showing Cherry Valley limestone
Marcellus shale in central New York showing Cherry Valley limestone

Exposure of the Marcellus shale in central New York showing the Cherry Valley limestone (grey-colored rock) between the Union Springs and Oatka Creek shales of the Marcellus.

Exposure of the Marcellus shale in central New York showing the Cherry Valley limestone (grey-colored rock) between the Union Springs and Oatka Creek shales of the Marcellus.

Image: Double Coverage
Double Coverage
Double Coverage
Double Coverage

Hydrologist Charlie Culbertson holds an acoustic velocity meter under the ice covered river while standing under the covered bridge over the Ellis River at South Andover, Maine. This meter is used to collect streamflow information through the ice during the winter period.

Hydrologist Charlie Culbertson holds an acoustic velocity meter under the ice covered river while standing under the covered bridge over the Ellis River at South Andover, Maine. This meter is used to collect streamflow information through the ice during the winter period.

Cuyahoga River at Independence OH - light shore ice
Cuyahoga River at Independence OH - light shore ice
Cuyahoga River at Independence OH - light shore ice
Cuyahoga River at Independence OH - light shore ice

Cuyahoga River at Independence OH - light shore ice

Cuyahoga River at Independence OH - left control
Cuyahoga River at Independence OH - left control
Cuyahoga River at Independence OH - left control
Cuyahoga River at Independence OH - left control

Cuyahoga River at Independence OH - left control

Cuyahoga River at Independence OH - right control
Cuyahoga River at Independence OH - right control
Cuyahoga River at Independence OH - right control
Cuyahoga River at Independence OH - right control

Cuyahoga River at Independence OH - right control

Cuyahoga River at Independence OH - upstream view
Cuyahoga River at Independence OH - upstream view
Cuyahoga River at Independence OH - upstream view
Cuyahoga River at Independence OH - upstream view

Cuyahoga River at Independence OH - upstream view

Image: Winter Morning Streamgaging
Winter Morning Streamgaging
Winter Morning Streamgaging
Winter Morning Streamgaging

On January 14, 2015, hydrologic technicians Jeff Kinsey (shown) and Nick Stasulis visited USGS gaging station 01030500 on the Mattawamkeag River.

On January 14, 2015, hydrologic technicians Jeff Kinsey (shown) and Nick Stasulis visited USGS gaging station 01030500 on the Mattawamkeag River.

3 researchers on the deck of a ship, with the sea in the background, are pulling on a thick black cable.
Researchers pull in a cable containing underwater microphones
Researchers pull in a cable containing underwater microphones
Researchers pull in a cable containing underwater microphones

Rob Thieler (left), Laura Brothers, and David Foster pull in a cable containing underwater microphones after completing a seismic survey in 2014.

Rob Thieler (left), Laura Brothers, and David Foster pull in a cable containing underwater microphones after completing a seismic survey in 2014.

USGS staff and Tribal GIS workshop participants
USGS staff and Tribal GIS workshop participants
USGS staff and Tribal GIS workshop participants
USGS staff and Tribal GIS workshop participants

USGS staff and Tribal GIS workshop participants

Map showing the distribution of physiographic zones within the Buzzards Bay study area
Map showing distribution of physiographic zones in Buzzards Bay, MA
Map showing distribution of physiographic zones in Buzzards Bay, MA
Map showing distribution of physiographic zones in Buzzards Bay, MA

Map showing the distribution of physiographic zones within the Buzzards Bay study area. The physiographic zone classification is adapted from Kelley and others (1998), and the zones are delineated on the basis of sea-floor morphology and the dominant texture of surficial material.

Map showing the distribution of physiographic zones within the Buzzards Bay study area. The physiographic zone classification is adapted from Kelley and others (1998), and the zones are delineated on the basis of sea-floor morphology and the dominant texture of surficial material.

Bottom simulating reflector
Bottom simulating reflector
Bottom simulating reflector
Bottom simulating reflector

Bottom simulating reflector imaged in 2014 by the USGS along a seismic line acquired south of Hudson Canyon during the Extended Continental Shelf cruise.  Image provided by D. Hutchinson and reproduced from USGS Fact Sheet 3080.

Bottom simulating reflector imaged in 2014 by the USGS along a seismic line acquired south of Hudson Canyon during the Extended Continental Shelf cruise.  Image provided by D. Hutchinson and reproduced from USGS Fact Sheet 3080.

Treated wastewater from Joint Base Cape Cod was discharged to rapid-infiltration disposal beds from 1936 to 1995
Treated Wastewater from Joint Base Cape Cod was Discharged
Treated Wastewater from Joint Base Cape Cod was Discharged
Treated Wastewater from Joint Base Cape Cod was Discharged

Treated wastewater from Joint Base Cape Cod was discharged to rapid-infiltration disposal beds from 1936 to 1995. The disposal formed a groundwater contamination plume that extends more than 10 kilometers in the Cape Cod sand and gravel glacial outwash aquifer.

Treated wastewater from Joint Base Cape Cod was discharged to rapid-infiltration disposal beds from 1936 to 1995. The disposal formed a groundwater contamination plume that extends more than 10 kilometers in the Cape Cod sand and gravel glacial outwash aquifer.

A flow tripod (taller, right) and sonar tripod (smaller, left) at the dock
Oceanographic Tripods on the Dock
Oceanographic Tripods on the Dock
Oceanographic Tripods on the Dock

A flow tripod (taller, right) and sonar tripod (smaller, left) at the dock before being loaded onto a ship and taken to a site off Fire Island for deployment.

A flow tripod (taller, right) and sonar tripod (smaller, left) at the dock before being loaded onto a ship and taken to a site off Fire Island for deployment.

An outcrop-scale brittle fault exposed on the shore of Lake Anna in the vicinity of the Dominion North Anna Power Plant.
Outcrop-Scale Brittle Fault, Lake Anna
Outcrop-Scale Brittle Fault, Lake Anna
Outcrop-Scale Brittle Fault, Lake Anna

An outcrop-scale brittle fault exposed on the shore of Lake Anna in the vicinity of the Dominion North Anna Power Plant.  The fault offsets a pegmatite dike within biotite granitic gneiss by about 1 meter, in a reserve (top-to-east) sense-of-motion.  The small fault is oriented 235°, with a dip of 30° to the northwest (view is to south in this photograph).

An outcrop-scale brittle fault exposed on the shore of Lake Anna in the vicinity of the Dominion North Anna Power Plant.  The fault offsets a pegmatite dike within biotite granitic gneiss by about 1 meter, in a reserve (top-to-east) sense-of-motion.  The small fault is oriented 235°, with a dip of 30° to the northwest (view is to south in this photograph).

A USGS researcher measures water and sediment movement at Forsythe National Wildlife Refuge, New Jersey
USGS scientist measures water and sediment movement
USGS scientist measures water and sediment movement
USGS scientist measures water and sediment movement

A USGS researcher measures water and sediment movement at Forsythe National Wildlife Refuge, New Jersey.