Introduction
The Potomac Region of the ASPRS serves the States of Pennsylvania (primarily the southeastern and central sections), Maryland, Delaware, the District of Columbia, Virginia, and North Carolina (See Region Boundaries). The mid-Atlantic area served by the Potomac Region is extensively involved with advanced technology research and development and long-range program and policy development that has a significant impact on the collection and availability of spatial data.
Satellite Images depicting the shrinking Aral Sea
Sept 1989 - Oct 2010. USGS

