Filters: Types: OGC WFS Layer (X) > Extensions: NGGDPP Collection (X) > Categories: Map (X)

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Geologic Sections Collection VDOT (Virginia) The Virginia Department of Transportation (VDOT) Geologic Sections dataset consists of site-specific, large-scale geologic cross-sections (composite sheets). These sections were acquired from VDOT in order to save them from disposal. There are 5,500 geological profiles created for highway construction projects containing extensive core, auger and split-spoon logs at scales of 1:50 and 1:100 providing a unique record of subsurface geological and geotechnical data along roadways throughout Virginia. The thousands of feet of vertical subsurface data represents millions of dollars of investment in data acquisition by VDOT. The sections are useful as indicators of subsurface geology in large parts of Virginia. ... Categories: Data, Map, Physical Item, Project; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection County Aerial Photograph Index Maps, 1936-1980 This collection (known internally to Maryland Geological Survey as Component 4) consists of 375 22-inch by 34-inch photo-mosaic index maps dating from 1936-1980. These index maps depict flight lines and frame numbers for two components of the MGS Aerial Photograph Collection: 1) Component 1: County-Based Aerial Photographs (https://www.sciencebase.gov/catalog/item/4f4e4a94e4b07f02db658dba); and 2) Component 2: MD Barrier Island Aerial Photographs (Enlargements) (https://www.sciencebase.gov/catalog/item/4f4e4aafe4b07f02db66cf18). These index maps serve as a finding aid for these two components. All of the index maps have been scanned (most to JPG, PDF, and TIF format). Digital imagery (PDF) for the majority... Categories: Data, Map, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection