Images

Photographs of different types of erosion that physically degrade archaeological sites along the Colorado River in Grand Canyon National Park: (A) Cutbank erosion in a large alluvial terrace has exposed a prehistoric hearth (buried charcoal lens) in profile; (B) Surface erosion from both water runoff and wind has deflated the archaeological matrix, and in the absenc

RAMPS Biologist Sarah Costanzo collects soil for greenhouse inoculation experiments. Photo by Laura Shriver.

A staff photo of Lauren Tango, conducting field research on the Colorado River in Grand Canyon. 

Northern Arizona University graduate student Ri Corwin collects soil for greenhouse inoculation experiments. Photo by Laura Shriver.

Northern Arizona University graduate students monitor seedling emergence in a northern Arizona RestoreNet site. Photo by Laura Shriver.

Lindsay Hansen holds a flannelmouth sucker on a research boat during Colorado River Grand Canyon fish monitoring. 

A SM4 bat detector is deployed at Kwagunt Canyon in Grand Canyon. This weatherproof detector records ultrasonic bat calls. Photo by Anya Metcalfe, USGS, SBSC. This is part of an ongoing study during a study that is examining bat abundance and foraging in Grand Canyon along the Colorado River.

An incognito SM4 bat detector is placed in a hidden location in a mesquite tree in Grand Canyon near the Colorado River, below Emerald Rapid. This weatherproof detector records ultrasonic bat calls. This is part of an ongoing study during a study that is examining bat abundance and foraging in Grand Canyon.

Humpback chub swim together in Havasu Creek, a tributary to the Colorado River near Grand Canyon, AZ. Photo by David Herasimtschuk, Freshwaters Illustrated.

Researchers conducting vegetation and soil fieldwork in the Mojave Desert, Nevada. Photo by Claire Karban, USGS, SBSC.

Erica Byerley and Shannon Sartain tabling at the Grand Canyon River Guides Training Seminar, April 2023. Photo by SBSC, Grand Canyon Monitoring and Research Center.

Stalks of Woolly plantain (Plantago patagonica) near Roosevelt Lake, AZ. Photo by Laura Shriver, USGS, SBSC.

Purple owl's clover (Plantago patagonica) flowers in Arizona. Photo by Laura Shriver, USGS, SBSC.

A newly installed Low Earth Orbit (LEO) satellite receiver is connected to a suspended sediment concentration sensor at the historic Grand Canyon gaging station. In the background is the South Kaibab Trail bridge and Boat Beach located at Phantom Ranch.

Shrubs growing in and around the arrays at the Gemini Solar Project in Nevada. Gemini developed measures to avoid, minimize and mitigate impacts to the environment during construction and operation. USGS collaborates with the Bureau of Land Management on research at this array. Photo by Claire Karban, USGS.

A desert tortoise burrow at the Gemini Solar Project in Nevada. Desert tortoise burrows are also used by other wildlife. Gemini developed measures to avoid, minimize and mitigate impacts to the environment during construction and operation. USGS collaborates with the Bureau of Land Management on research at this array. Photo by Claire Karban, USGS.

The Gemini Solar Project in Nevada. Gemini developed measures to avoid, minimize and mitigate impacts to the environment during construction and operation. The USGS partners with the Bureau of Land Management on studies at the site. Photo by Claire Karban, USGS, public domain.

Close up of Sonoran Desert flowers, including California poppy, lupines, and purple owl's clover. Photo by Laura Shriver.

Coulter's Lupine or Desert Lupine (Lupinus sparsiflorus) flowers at Lake Pleasant, AZ. Photo by Laura Shriver, USGS, SBSC.

Chia sage (Salvia columnbariae) flowers at Lake Pleasant, AZ. Photo by Laura Shriver, USGS, SBSC. 

Sphaeralcea ambigua, a native plant seeded during RestoreNet experiments, thriving at the Lake Pleasant RestoreNet site in the Sonoran Desert. Photo by Laura Shriver.