Spring in Maine introduces significant challenges for hydrographers when it comes to accessing remote stations. In this photo, hydrologic technician Anthony Underwood is prepared to visit the USGS gaging station on Libby Brook near Northfield, Maine.
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Spring in Maine introduces significant challenges for hydrographers when it comes to accessing remote stations. In this photo, hydrologic technician Anthony Underwood is prepared to visit the USGS gaging station on Libby Brook near Northfield, Maine.
On April 9, 2014 a visit to the USGS gaging station on Libby Brook near Northfield, Maine showed that while runoff had caused a large rise in the small brook, there still remained a significant snowpack in the area.
On April 9, 2014 a visit to the USGS gaging station on Libby Brook near Northfield, Maine showed that while runoff had caused a large rise in the small brook, there still remained a significant snowpack in the area.
The Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
The Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
A hiking trail winds through the woods of Catoctin Mountain Park towards the Chimney Rock formation. Catoctin Mountain is part of the Blue Ridge Mountains.
A hiking trail winds through the woods of Catoctin Mountain Park towards the Chimney Rock formation. Catoctin Mountain is part of the Blue Ridge Mountains.
The Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
The Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
A panorama of the Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
A panorama of the Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
A panorama of the Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
A panorama of the Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
The Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
The Chimney Rock formation with Catoctin Moutain Park. Catoctin Mountain is part of the Blue Ridge Mountains. Chimney Rock is mostly made of quartzite, a metamorphic mineral.
A USGS streamflow gauge station in the lower Trinity River, Texas.
A USGS streamflow gauge station in the lower Trinity River, Texas.A USGS streamflow gauge station in the lower Trinity River, Texas.
A USGS streamflow gauge station in the lower Trinity River, Texas.
A USGS streamflow gauge station in the lower Trinity River, Texas.A USGS streamflow gauge station in the lower Trinity River, Texas.
Catastrophic landslide near Oso, WA, Mar. 22, 2014.
Catastrophic landslide near Oso, WA, Mar. 22, 2014.Catastrophic landslide near Oso, Washington, March 22, 2014.
Catastrophic landslide near Oso, WA, Mar. 22, 2014.
Catastrophic landslide near Oso, WA, Mar. 22, 2014.Catastrophic landslide near Oso, Washington, March 22, 2014.
A USGS streamflow gauge station in the lower Trinity River, Texas.
A USGS streamflow gauge station in the lower Trinity River, Texas.A USGS streamflow gauge station in the lower Trinity River, Texas.
A USGS streamflow gauge station in the lower Trinity River, Texas.
A USGS streamflow gauge station in the lower Trinity River, Texas.A USGS streamflow gauge station in the lower Trinity River, Texas.
View looking west from Fishermans Cove, across Ashumet Pond, Cape Cod, Massachusetts. The small sticks in the lake are a small-scale sampling grid.
View looking west from Fishermans Cove, across Ashumet Pond, Cape Cod, Massachusetts. The small sticks in the lake are a small-scale sampling grid.
The photograph shows a spider unit, which is being used to help study the landslide that occurred in northwest Washington on March 22, 2014. Spiders are portable instrumentation packages that contain high-precision GPS units for detecting landslide movement as well as geophones for detecting small vibrations. The spiders can be emplaced by hovering helicopters.
The photograph shows a spider unit, which is being used to help study the landslide that occurred in northwest Washington on March 22, 2014. Spiders are portable instrumentation packages that contain high-precision GPS units for detecting landslide movement as well as geophones for detecting small vibrations. The spiders can be emplaced by hovering helicopters.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Oblique aerial photograph of the Oso, Washington landslide, showing the entire extent of the landslide source area and path.
Location: State Route 530, Oso, Washington
Oblique aerial photograph of the Oso, Washington landslide, showing the entire extent of the landslide source area and path.
Location: State Route 530, Oso, Washington
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Colorado River at Southerly International Boundary during the pulse flow, March 29th, 2014.
Colorado River at Southerly International Boundary during the pulse flow, March 29th, 2014.
Several species of scleractinian corals growing under red mangrove prop roots.
Several species of scleractinian corals growing under red mangrove prop roots.
USGS scientists measure streamflow and collect sediment samples on part of the normally dry Colorado River along the United States-Mexico border.
USGS scientists measure streamflow and collect sediment samples on part of the normally dry Colorado River along the United States-Mexico border.
Portrait of Ryan McClymont