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Our scientists in the Northwest Region conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens of the Northwest states of Idaho, Montana, Oregon, Washington, and Wyoming.

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Boreal toad (Bufo boreas) mating ball, Bridger-Teton National Forest, Wyoming.
December 31, 2001

Boreal toad (Bufo boreas) mating ball

Boreal toad (Bufo boreas) mating ball, Bridger-Teton National Forest, Wyoming.

Image shows two scientists on the slopes of Mount St. Helens with steam rising around them
September 24, 1981

Gas Sampling around the Mount St. Helens Dome

USGS geologists gathered samples by hand from vents on the dome and crater floor. Additionally, sulfur dioxide gas was measured from a specially equipped airplane before, during, and after eruptions to determine "emission rates" for the volcano.

Volcano erupting and spewing a huge cloud of rock and ash into the sky.
May 18, 1980

Mount Saint Helens eruption

On Sunday, May 18, 1980 at 8:32 a.m., the bulging north flank of Mount St. Helens slid away in a massive landslide -- the largest in recorded history. Seconds later, the uncorked volcano exploded and blasted rocks northward across forest ridges and valleys, destroying everything in its path within minutes.

Sampling for aquatic invasive species in the Greater Yellowstone Area.

Sampling for aquatic invasive species in the Greater Yellowstone Area.

Sampling for aquatic invasive species in the Greater Yellowstone Area.

Comparison of traditional and thermal imagery to show mange.

Comparison of traditional and thermal imagery to show mange.

Thermal imagery is one tool to assist researchers in measuring temperature loss from the mange patches (red) and compare this with temperature loss from natural fur (blues and greens). As you can see in the two contrasting images, the hairless areas associated with mange are much easier to see using thermal imagery due to heat loss versus a standard photograph from a

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Scientists Barnaby Watten and Andrew Ray (NPS) conducted dose response laboratory trials.

Dose response laboratory trials to assess the concentration of dissolved CO2 in water.

Hyperbaric system used to house and expose larval bullfrogs to elevated dissolved CO2 in water for 24-hour exposure period. Experiments were conducted at USGS Leetown Science Center in Kearneysville, WV. NPS Biologist Dr. Andrew Ray (left, formerly USGS) and USGS Biological Science Technician Mark Abbey-Lambertz (right) removing larvae from experimental chambers. 

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Bullfrog tadpoles captured with a seine net near Huntley, MT.

Bullfrog tadpoles captured with a seine net near Huntley, MT.

Bullfrog tadpoles captured with a seine net near Huntley, MT. 

A pair of howling wolves as seen by thermal imagery at the Grizzly and Wolf Discovery Center.

Howling wolves/

A pair of howling wolves as seen by thermal imagery at the Grizzly and Wolf Discovery Center.

Our scientists in the Northwest Region conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens of the Northwest states of Idaho, Montana, Oregon, Washington, and Wyoming.