Documents

Horseshoe and Bartlett Dams are located In the Transition Zone of central Arizona. Within this province, faults with evidence of Quaternary activity are widely scattered, and selsmiclty Is low In comparison to other parts of the western United States.

We conducted a paleoseismic study on the San Andreas fault (SAF) southeast of Cholame, California, to investigate the record of earthquakes along an 80-km paleoseismic data gap between Parkfield and the Carrizo Plain.

A paleoseismic study conducted along the Cholame segment of the San Andreas fault provides evidence for three earthquakes and the amount of lateral offset for the most recent event (1857 Fort Tejon earthquake).

Passive survey for raptors in 2016 were conducted at four sites in the vicinity of the Resolution Copper Project. Survey was conducted at the Whitlow Ranch Dam, two portions of Devils Canyon, and one segment of Mineral Creek, all in Pinal County, Arizona.

The impact of outdoor lighting from the proposed Resolution Copper mine on the night skies as viewed from four observation points is assessed.

An existing model of desert pavement formation suggests desert pavement clasts rise vertically on an accreting eolian mantle and the underlying vesicular horizon coevolves with pavement formation. Results presented here support this model and provide a mechanism whereby eolian material is transported from the ground surface to ped interiors, thereby increasing the thickness of the vesicular horizon help identify the processes of underlying desert pavements.

The Heritage Data Management System (HDMS) is part of a global network of more than 80 Natural Heritage Programs and Conservation Data Centres. HDMS information is available so Arizonans can make prudent decisions weighing future development, economic growth, and environmental integrity.

Technical memorandum evaluating potential drawdown impacts from groundwater pumping to supply water for the proposed Resolution Copper mine.

The effects of particulate air pollutants on vegetation have been studied, mainly under laboratory conditions. This research was concentrated on the major effects of leaf incrustations, namely interference with light absorption, reduction in net photosynthesis, and resultant reduction in growth.

This Resource Management Plan/Final Environmental Impact Statement has been prepared to guide management of 1,400,000 acres of public land in the Safford District (southeastern Arizona) for approximately the next 15 years. The decisions in the approved Resource Management Plan/Record of Decision will determine which use or combination of uses will be emphasized in the District.