Images

Microscopic view of tree rings from a ponderosa pine in northern New Mexico. Photo by Ellis Margolis (USGS).

USGS researchers and collaborators stand in front of the future site of a wildlife overpass in Colorado. Photo by Sarah Carter (USGS).

USGS researchers and collaborators view wildlife fencing adjacent to an wildlife underpass on I-25 in Colorado. Photo by Sarah Carter (USGS).

USGS researchers with the Colorado Department of Transportation and Federal Highway Administration visit a newly constructed wildlife underpass on I-25, south of Castle Rock, CO. Photo by Sarah Carter (USGS).

USGS researchers with the Colorado Department of Transportation and Federal Highway Administration visit a newly constructed wildlife underpass on I-25, south of Castle Rock, CO. Photo by Sarah Carter (USGS)

An animated heat map of greater sage-grouse (Centrocercus urophasianus) annual peak male counts from 1990 to 2023 using the standardized sage-grouse lek database. The color ramp uses light blue (fewest number of males counted on leks) to purple (greatest number of males counted on leks), reflecting local minimum and maximum counts of males.

Field station staff use microscopes to date fire scars in wood samples from Aztec Springs, NM. Photo by Ellis Margolis (USGS).

FORT Geneticist Jennifer Fike teaches 6th graders from Compass Community Collaborative School about extracting DNA from strawberries. Photo by Emma Dietrich (USGS).

A wild horse stands in the Frisco Herd Management Area, Utah. Photo by E. Long (USGS)

Sagebrush and conifers in the Frisco Herd Management Area, Utah. Photo by L. Prevot (USGS).

Wild horses of the Frisco Herd Management Area, Utah. 

Photo by E. Long (USGS).

Photograph of cheatgrass by Fort Collins Science Center biologist Janet Prevéy (USGS).

Photograph of a post-fire landscape by Fort Collins Science Center biologist Janet Prevéy (USGS).

Landscape with invasive annual grasses. Photograph by FORT biologist Janet Prevéy (USGS).

USGS table at the USGS Open House held in Albuquerque at the Southwest Indian Polytechnic Institute (SIPI) on Tuesday September 26, as part of a series of Tribal engagement events on drought

USGS scientists lead a panel at the USGS Open House held in Albuquerque at the Southwest Indian Polytechnic Institute (SIPI) on Tuesday September 26, as part of a series of Tribal engagement events

Similar nearby headwater streams are being evaluated to determine how shifts in habitat availability and connectivity in drought years affect fish populations (Carbon County, Wyoming). Photo by Patrick Anderson (USGS).

Vegetation growth is assisting the Muddy Creek channel in becoming deeper and narrower (Carbon County, Wyoming).  Photo by Patrick Anderson (USGS)

USGS scientist Jason Alexander, a fluvial geomorphologist with the Wyoming Montana Water Science Center, explains how he used sediment traps to evaluate sediment deposition in Littlefield Creek (Carbon County, Wyoming). Photo by Patrick Anderson (USGS).

Muddy Creek reach showing bank erosion and the development of a point sandbar that is being stabilized by vegetation (Carbon County, Wyoming).  Photo by Patrick Anderson.

Small rodents disturb surface soil on banks which contribute to fine sediments in the upper reaches of Littlefield Creek (Carbon County, Wyoming). Photo by Patrick Anderson (USGS).