Added aerial photo coverage for all of Frederick County Maryland a total area of 667 square miles in the year 1958. View of Fort Detrick a United States Army Futures Command installation located in Frederick Maryland in 1958.
Added aerial photo coverage for all of Frederick County Maryland a total area of 667 square miles in the year 1958. View of Fort Detrick a United States Army Futures Command installation located in Frederick Maryland in 1958.