Unified Interior Regions

Arizona

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 240
David Scott and James Irwin operating Grover
November 1, 1970

Apollo Grover Historical Photo: B1

James Irwin(left) and David Scott(right) training in the Lunar Roving Vehicle training version known also known as the "Grover"

Image: San Carlos River near Peridot, Southern Arizona - 1964
June 4, 1964

San Carlos River near Peridot, Southern Arizona - 1964

Riparian vegetation has increased to the extent of blocking the downstream view. The channel appears to have shifted to the right, and the terrace is now occupied by cottonwood, black willow, and tamarisk. (Raymond M. Turner).

Attribution: Land Resources
Image: Huérfano Butte, Santa Rita Experimental Range, Southern Arizona  - 1941
September 1, 1941

Huérfano Butte, Santa Rita Experimental Range, Southern Arizona - 1941

Members of the 1930s burrowed and cholla eruptions were visible in 1941 as well as new mesquite plants that were already quite large. (Photographer unknown).

Attribution: Land Resources
Image: San Carlos River near Peridot, Southern Arizona - 1940
March 21, 1940

San Carlos River near Peridot, Southern Arizona - 1940

In 1940, the gaging station for the San Carlos River was on a railroad bridge south of the little town of Peridot. This downstream view from that bridge shows the gage house on the extreme left and a safety railing next to it. The channel is wide following a flood, and scattered Frémont cottonwood trees are along channel right. The dense shrubs on the low terrace on the

...
Attribution: Land Resources
Image: Huérfano Butte, Santa Rita Experimental Range, Southern Arizona - 1902
April 1, 1902

Huérfano Butte, Santa Rita Experimental Range, Southern Arizona - 1902

Ground repeat photography location 233 looking west at Huérfano Butte, at 1,159-meter elevation. In 1902, photographer David Griffiths’ horse-drawn buggy was clearly visible in the open grassland, and scattered desert hackberry plants were behind and on either side of the buggy. (David Griffiths).

Attribution: Land Resources
USGS
December 19, 2019

Annex PDS Status Classification Chart

The PDS archive status (marked at upper right of each product page, see table) of geospatial data products in the Annex varies, depending on the source and date of delivery to the Annex. Most products are either PDS3 or PDS4 compliant, with the majority served as 8- or 16-bit “raw” GeoTIFFs (meaning uncompressed and untiled, see White Paper below) with detached PDS3 and

Image: Grand Canyon

Grand Canyon

Sun making shadows at the Grand Canyon.

Image: Grand Canyon

Grand Canyon

Colorado River view.

Attribution: Water Resources
USGS
January 17, 2020

Annex Tutorial 2020

Shows users how to use the Annex apps and how to find data.