Filters: Tags: {"scheme":"https://www.sciencebase.gov/vocab/category/NGGDPP/nggdpp_collection_types"} (X) > Categories: Image (X) > partyWithName: Maryland Geological Survey (X) > Types: Map Service (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions NGGDPP Collection (2) Types Collection (2) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts MGS Curator Categories Data (2) Physical Item (2) Tag Types theme (2) Tags (with Scheme=https://www.sciencebase.gov/vocab/category/NGGDPP/nggdpp_collection_types) ndc_collection (2) View Results as: JSON ATOM CSV

Washington, DC & Vicinity Aerial Photographs, 1945-1949 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... Categories: Data, Image, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection Quad-Based Aerial Photographs, 1936-1991 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... Categories: Data, Image, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection