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This collection (known internally at Maryland Geological Survey as Component 9) consists of 1,474 black-and-white aerial photographs (1,472 unique frames plus 2 duplicates) plus 2 index maps which serve as a finding aid for the photographs in the two sub-components of this collection -- DC Collection 1 and DC Collection 2. The photographs are 9 in. by 9 in. in size and cover Washington, DC and vicinity (including portions of Maryland and Virginia). The counties in Maryland covered by these aerial photographs are Anne Arundel, Howard, Montgomery, and Prince George's Counties. No date is printed on these photographs; however, based on features shown in the photographs, Maryland Geological Survey (MGS) estimates...
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This collection (known internally at Maryland Geological Survey as Component 7) consists of 48 high-altitude, 9 in. by 9 in. infrared aerial photographs (48 unique frames). The photographs date from 1970-1974 and were flown over ten counties in Maryland and some small portions of Virginia along the Maryland border. The counties in Maryland covered by these photographs include Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick, Harford, Howard, Montgomery, and Prince George?s Counties. The scale of these photographs is not printed on the photographs; however, Maryland Geological Survey (MGS) calculates the scale to be approximately 1:120,000 for the Series 74-039 photographs; approximately 1:140,000...
This collection (known internally to Maryland Geological Survey as Component 5A) consists of 103 photo-mosaic index maps (89 unique maps plus duplicates) dating from 1955-1981. The date printed on the index map (and listed in the metadata) is the date that flying (photography) was completed for each index map. Each photo-mosaic index map shows individual aerial photographs (with Flight Lines and Frame numbers) in a particular U.S. Geological Survey (USGS) 7.5-minute or 15-minute quadrangle in Maryland, Delaware, New Jersey, Virginia, or West Virginia. These index maps are black-and-white and approximately 10 in. by 12 in. in size. This collection serves as a finding aid for a portion of the Quad-Based Aerial...
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This collection (known internally at Maryland Geological Survey as Component 5) consists of 4,720 items – 4,715 black-and-white aerial photographs (4,688 unique frames plus 27 duplicates) and 5 associated index maps. The aerial photographs were flown or acquired by the U.S. Geological Survey (USGS) and organized on a 7.5-minute quadrangle basis. The photographs are black-and-white and approximately 9 in. x 9 in. in size. The scale of the aerial photography varies but ranges from approximately 1:12,000 to 1:35,400. These photographs date from 1936-1991 and were donated to the Maryland Geological Survey (MGS). The index maps serve as a finding aid for several of the flight series flown over five quadrangles...
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This collection (known internally at Maryland Geological Survey as Component 2) consists of 505 enlargements of unrectified, black-and-white aerial photographs flown along Maryland's barrier islands during 13 different time periods (or "sets") between October 1952 and July 1964. Each of the photographs in the collection is about 2 feet x 2 feet in size. Some of the photographs have a scale of 1:14,400 or 1:6,000 stamped on the front. On the backs of many of the photographs is another stamp of "1" = 200 ft". The photographs cover the Maryland section of two narrow barrier islands that lie along Maryland's Atlantic coast, separated by the Ocean City Inlet: Fenwick Island to the north and Assateague Island to the...


    map background search result map search result map MD Barrier Island Aerial Photographs (Enlargements), 1952-1964 Quad-Based Aerial Photographs, 1936-1991 High-Altitude Infrared Aerial Photographs, 1970-1974 Washington, DC & Vicinity Aerial Photographs, 1945-1949 Quad-Based Photo-Mosaic Index Maps, 1955-1981 MD Barrier Island Aerial Photographs (Enlargements), 1952-1964 Washington, DC & Vicinity Aerial Photographs, 1945-1949 High-Altitude Infrared Aerial Photographs, 1970-1974 Quad-Based Photo-Mosaic Index Maps, 1955-1981 Quad-Based Aerial Photographs, 1936-1991