DC Atlas    The DC Atlas provides detailed maps with GIS functionality. Please the Real Property (Legacy) mapping application is now retired.  Users can find the same information and more in the All-in-One application below.  Look under the Property and Land theme to view detailed property information.  Please turn off popup blockers while using DC Atlas. DC Atlas All In One Service DC Atlas All In One in ArcMap (.mxd) - Click this MXD file to open it in ArcMap. If using ArcGIS 9.2 SP4 or an earlier version, save the MXD as a local file, then open that file in ArcMap. Also, visit the DC Guide Real Property website for additional property information. Please be sure to read the DC Atlas All-in-One User Guide* * This document is presented in Portable Document Format (PDF). A PDF reader is required for viewing. Download a PDF Reader or Learn More About PDFs.