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
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
...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).
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
TNMCorps Mapping Challenge: City/Town Halls in AZ, NM, & UT 01/06/2020
TNMCorps Mapping Challenge: City/Town Halls in AZ, NM, & UT 01/06/2020
I-Map Database
Excel spreadsheet listing the many planetary and lunar maps published from 1961 on. Some are available in hardcopy form at no cost to the requestor.
Lava Flow Presentation
Lava Flow Presentation by Laszlo Keszthelyi
Annex Tutorial 2020
Shows users how to use the Annex apps and how to find data.
Meteor Crater Drill Cuttings Sampling Protocol
Meteor Crater Drill Cuttings Sampling Protocol