Research


Custodial History

Some photographs were created specifically for the Department of Transportation. Much of the imagery was received from the United States Geographical Survey (USGS) when its hard copy imagery collection was downsized. Material collected and created by the Department of Transportation Map Information Unit for its base mapping project was transferred to the Office of Technology in 2001 and subsequently transferred to the Office of Cyber Security & Critical Infrastructure Coordination (CSCIC) at the time of its formation.