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Geologic Atlas: Elkton-Wilmington folio; Maryland-Delaware-New Jersey-Pennsyl...
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Coatesville-West Chester folio, Pennsylvania-Delaware
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Delaware Geological Survey: Geology and Water-Table Maps
Links to Delaware geologic map datasets and water-table datasets; includes GIS-readable formats. -
Geologic Atlas: Philadelphia folio; Norristown, Germantown, Chester, and Phil...
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Stable hydrogen and oxygen isotope ratios for selected sites of the National ...
From the site: "Increasingly, hydrologic studies require information on the isotopic composition of natural waters. This report presents stable hydrogen (δ2H) and oxygen isotope... -
Geologic Atlas: Dover folio, Delaware-Maryland-New Jersey
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
USGS Mineral Resources: Delaware geologic map data
From the site: "A GIS database of geologic units and structural features in Delaware, with lithology, age, data structure, and format written and arranged just like the other... -
LiMWA
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any... -
Transect
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any... -
Cross Sections
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any... -
Base Flood Elevation
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any... -
FIRM Panel
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any... -
CRBS
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any... -
Delaware DFIRM 2.0
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any...