Images

Bacteria contained in filter chambers placed in downgradient observation wells were exposed to sulfamethoxazole for 30 days as it traveled past the wells

Microbial-Contaminant Interactions Laboratory — Boulder, Colorado. Bacteria contained in filter chambers placed in downgradient observation wells were exposed to sulfamethoxazole for 30 days as it traveled past the wells.

In this image, a Gunnison prairie dog eats a bait laden with the sylvatic plague vaccine. Prairie dogs in the wild are less likely to succumb to plague after they ingest peanut-butter-flavored bait that contains a vaccine against the disease.

In the stream is Martel Fisher (USGS) and Bart Powaukee (Coordinator Ute Indian Tribe Water Quality Department) and some of the Ute Tribe Water Quality Department employees.

Map of historic and current sage-grouse range in 2000, provided as a download from the old USGS Sagemap website.

Photo showing intense acid-sulfate hydrothermal alteration on Red Mountain No. 2, Silverton CO. View is looking to the west across Corkscrew Gulch. 

Canadian escarpment rising above the plains, northeastern San Miguel County, NMWSC

Opening of a large lava tube at El Malpais National Monument in western New Mexico and likely roost for bats, 2011.

View from sandstone bluff overlooking extinct lava flows at El Malpais National Monument, New Mexico.

Elk in the Beartooth Mountains, Wyoming. The USGS and partners study the effects of climate change on the Greater Yellowstone Ecosystem. 

This is a false-color-composite satellite image of Great Salt Lake, Nov 2011. The vegetation appears red.

Measuring streamflow using ADCP, Fish Creek

Extensive, contiguous mortality of piñon pine, ponderosa pine, and Douglas-fir trees, killed in the first afternoon and evening of the 2011 Las Conchas Fire in the Jemez Mountains, New Mexico. Forest drought stress is highly correlated with mortality from poor growth, bark beetle outbreaks, and high-severity fire.

Cattle walking across biological soil crusts in southeastern Utah.

Dry conditions at cattle water sources in western Colorado. 

USGS hydrographer Jerrod Wheeler (in cablecar) measures flood flows right before the gagehouse washes away.

06225500 Wind River near Crowheart, WY: Jul 01 2011; 13,900 ft3/s

Gagehouse at 06225500 Wind River near Crowheart WY right before it washed away.

Jul 01 2011; 13,900 ft3/s

High floodwaters partially submerge a USGS streamgaging station in Slater Fork, CO.

High floodwaters on the Elk River upstream of Routt County Road 42 near Milner, CO.

High floodwaters on the Elk River upstream of Routt County Road 42 near Milner, CO

Floodwaters partially submerge a USGS streamgage station near Slater, CO.