A screenshot showing ArcMap.

What is a MXD File?

Caitlin Dempsey

Files with the extension .mxd are ArcMap document files and stands for Map Exchange Document.

Map of Irish Surnames from 1890 Census.

St. Patrick’s Day Maps and Geography

Caitlin Dempsey

Find maps about Irish surnames and the geography of St. Patrick's day from the US Census.

Understanding What Six GIS/Map Software Providers Offer

GIS Contributor

Matt Sheehan from WebMapSolutions is posing a series of six questions to six GIS/map software companies (Pitney Bowes, Esri, Mapbox, Carto, GIS Cloud, and Boundless) to understand their similarities and differences in product offerings.

How GIS Helps Drive Hydrography Data

Sangeeta Deogawanka

There are more high resolution maps of the Moon and Mars, than the seafloor.

A drawing of a monitor and a laptop with grey and green maps.

Secure Geocoding

Caitlin Dempsey

World Geocoder for ArcGIS allows users the ability to secure map out addresses and locations from behind a firewall.