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Screenshot of Metro Phoenix Land Use Maps Web App including pop-up box with information on one of the maps

New Map Collection and Index: Metro Phoenix Land Use Maps

The index for our new digital image collection, Metro Phoenix Land Use Maps, is now available to the public here. ...

Lunar map showing craters in the northern polar region.

Map of the Month: July 2021

Our July Map of the Month is this 1967 Soviet lunar map from the series titled Polnaya Karta Luny Complete Map of the Moon. The series is made up of nine sheets that display several magnified lunar qu...

An image of the current map of the month, a French map of the Colorado river from 1844.

Map of the Month: June 2021

Our June Map of the Month is this 1844 Plan de l'embouchure du Rio Colorado dans la Mer Vermeille (English title: Plan from the Mouth of Rio Colorado in the Ruddy Sea). It is a French survey of the mo...

Map of the United States in 1893 featuring geologic categorization of multiple rock types denoted by color and texture

Map of the Month: May 2021

Our May Map of the Month is this Reconnoissance Map of the United States by William John McGee from 1893. It displays the geologic variation throughout the regions of the United States as documented a...

Map of Mexico and Central American nations featuring color-coded regions denoting speakers of different Indigenous languages

Map of the Month: April 2021

Our April Map of the Month is this 1909 Linguistic Map of Mexico and Central America by Cyrus Thomas and J.R. Swanton. It displays the geographic distribution of a variety of Mesoamerican languages an...

Poors Railroad and Utilities Maps index, magnified to midwest and northeastern United States.

New Map Collection and Index: Poor’s Railroad and Utilities Maps

The index for our new digital image collection, the Poor’s Railroad and Utilities Maps collection, is available to the public here. ...

Strip Maps of Central Phoenix

New Map Collection and Index: Strip Maps of Central Phoenix

The index of our latest digital image collection, Strip Maps of Central Phoenix, is now available to the public in this interactive web map. Geographic Coverage: Phoenix, Arizona, United States Tim...

ArcGIS Online logo

ArcGIS Online Update -- April 13

ArcGIS Online Update -- April 13 Esri has announced that the new ArcGIS Online update is ...

Pilot Chart of the Great Lakes

Map of the Month – March 2021

Our March 2021 Map of the Month is this 1897 Pilot Chart of the Great Lakes by J.E. Craig and A.C. Roberts. It includes a detailed navigational map of the lakes as well as a variety of information on ...