Aberdeen Proving Ground

Aberdeen Proving Ground (APG) is a United States Army facility that neighbors Aberdeen and Edgewood, Maryland.

Aberdeen Proving Ground was formed in 1917 to provide the Army with sufficient land for testing its munitions and equipment. Around the same time, the Edgewood Arsenal was established on separate land, and provided the production and testing of chemical weapons. Edgewood Arsenal was discontinued as a separate installation in 1971 and its resources were transferred to Aberdeen Proving Ground.

The "Aberdeen area" refers to the northeastern side of APG, while the "Edgewood area" refers to the southwestern side, formerly the Edgewood Arsenal.

A portion of Edgewood Arsenal was separated into Fort Hoyle in 1922, to house artillery units of the Army. The post was incorporated back into Edgewood Arsenal in 1940.