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The University of Arizona

GIS & Geospatial Data

We designed this guide to help you use geographic information and geospatial data in your research.

What is GIS?

UA Spatial Data Repository

UA Campus Maps

Data for Mexico

High Res Imagery and LiDAR for Pima County

Historical City Maps

Explore US Demographics

Arizona Topo Data

    Welcome to the University of Arizona GIS guide!

    This guide provides a centralized link to data and resources available to University of Arizona faculty, staff, and students, as well as for the public. If you have any questions or special request for data, help with your GIS, or maps please use the contact links for library personnel on the left side of the page.

    What is GIS?



    GIS Day 2018 Recap

    The University of Arizona Libraries (UAL) Office of Innovation & Stewardship (ODIS) hosted a GIS Day on Wednesday, November 14th . In the morning we facilitated a workshop on Geospatial Analysis with Python which was attended by about 15 people. After lunch, a series of lightning talks by students, faculty and staff displayed the variety of ways that GIS and geospatial technology are being utilizes around campus.

    GIS Day was also a farewell to outgoing Geospatial Support Specialist, Ben Hickson who is moving on from the Library after 4 years of providing support to faculty and students. Ben was also instrumental in the development of the Spatial Data Explorer that UAL now maintains, which offers access to over 3,000 datasets and maps.

    Below are some photos from the event:















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    GIS Workshop - Introduction to ArcGIS Pro (11/2)

    We'll be holding a GIS workshop covering some basic concepts of GIS and how-to's of ArcGIS Pro on Friday, November 2nd from 1-3pm. All are welcome. The workshop will be held in Library room 112, which can be easily accessed from the atrium-level of the ILC.


    Library room 112 Map:

    Revisiting the Spilhaus Projection

    The Map Room explains the origins of a recently-viral image which shows a rendering of the Spilhaus Projection. The projection itself was first create in 1942 by Athelstan Spilhaus.

    In Spilhaus’s oceanic projection, centered on Antarctica, the world’s oceans form a single, uninterrupted body of water"



    Map rendering of the Spilhaus Projection

    Visualizing Indigenous Persistence during Spanish Colonization of the San Francisco Bay Area

    An interesting Esri StoryMap detailing the presence of indigenous territories in the SF Bay area.

    From the googlemaps mania blog:

    "By tracking the number of baptisms in native communities it is possible to view the spread of the Spanish missions' control over the indigenous people and to see the areas where native communities were initially outside of the missions' sphere of influence. The map also uses archaeological evidence to demonstrate where native communities persisted. This evidence includes radiocarbon dating of indigenous sites after the Spanish missions arrived and the lack of non-indigenous artifacts (glass, metal and ceramics) to show where the exchange of goods with missions was limited."


    Screenshot of storymap

    Cartography Playground

    A great resource to explore different aspects and points of good cartographic practices.

    "A simple and interactive website for explaining cartographic algorithms, problems and other matters. It is aimed at students of cartography who want to refresh and deepen their knowledge."

    Screenshot of cartography playground webpage

    USGS OWI Office Producing Geospatial R Tutorials

    Over the next couple of weeks, the USGS Office of Water Information is producing consecutive tutorial materials detailing introductory concepts to geospatial analysis using the R language.

    Screenshot of USGS OWI Page

    List of 150+ Publicly accessible State GIS Servers

    In line with his efforts to document federal gis servers (here), Joseph Elfelt with is also building a list of publicly accessible state GIS servers that are not easily found or accessed. Available in a pdf here:

    List of 50+ Publicly accessible Federal GIS Servers

    Joseph Elfelt with gathered a list of more than 50 publicly accessible GIS servers not easily accessible and published them in a pdf report. Note that these are not services that can be easily found on