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Grand Canyon Rio Grande. The Carazones from Chisos Mountains. Brewster County, Texas. 1899.
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Drill rig on location approximately six miles northeast of Andrews. Andrews County, Texas. May 1970.
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West Hills of Pea Colorado Gap, showing hogbacks of white Helderberg chert. Brewster County, Texas. 1899.
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Panorama of Santiago Range, Mount Ord Section. Brewster County, Texas. 1899.
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This data release provides digital flight line data for a high-resolution airborne radiometric survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041 line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Aeroradiometric survey, Airborne geophysical survey, Association of State Geologists, Boulder Mountains, All tags...
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Limestone Bad Land cliff, Irwin's Canyon, Rio Grande. Texas. 1899.
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Periphyton is a complex community of detritus, bacteria, fungi, and algae that grows attached to submerged substrates. Assemblage structure data for algae and cyanobacteria from periphyton samples were collected on a monthly basis from 2017 to 2021. Compiled data were reported as absolute abundance (cells) and biovolume per volume as well as absolute abundance (cells) and biovolume per area at four locations increasing in distance East of the L-67 canal in Water Conservation Area 3 (WCA 3) of the Florida Everglades immediately north of Everglades National Park. The periphyton assemblages were analyzed for five sample types including periphyton plates (Plates), invertebrate inclusion and exclusion plates (Inverts),...
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No caption provided. No date.
Categories: Image; Tags: Rhode Island, photo print
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Nine Point Mountain from west. Nine Point quadrangle. Brewster County, Texas. 1899.
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Sierra Rica opposite Presidio Del Norte. Presidio County, Texas. 1899.
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Tertiary limestone hills south of Arecibo, seen from road between Arecibo and Ponce; sugar cane in foreground and central (chimney) at left middle ground. Arecibo or Ponce County, Puerto Rico. February 1922.
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Panorama with image 539. View of large sink hole on rougher trail from Quebradillas to dam site. Aguadilla County, Puerto Rico. January 1922.
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These datasets provide early estimates of 2024 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from April to late June. Typically, the EAG estimates are publicly released within 7-13 days of the latest satellite observation used for that version. Each weekly release contains five fractional cover maps along with their corresponding confidence maps for: 1) a group of 16 species of EAGs, 2) cheatgrass (Bromus tectorum); 3) Field Brome (Bromus arvensis); 4) medusahead (Taeniatherum caput-medusae); and 5) Sandberg bluegrass (Poa secunda). These datasets were generated leveraging field observations from Bureau of Land Management (BLM) Assessment, Inventory,...
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Slickened vertical joints crossing bedding of crushed Chambersburg limestone. Road cut at Riverton, opposite Harrisburg (A 1). New Cumberland quadrangle. Pennsylvania. No date.
Categories: Image; Tags: Pennsylvania, photo print
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Panorama with image 575. View of the valley of Culebrinas River and the country to the south, seen from the escarpment and road between Lares and San Sebastian. Aguadilla County, Puerto Rico. February 1922.
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Bayaney Central (sugar factory) and associated buildings seen from the Arecibo-Lares road. Sugar cane in foreground and cane fields in distance; open country with gentle slopes similar to that at reservoir site and developed in same belt of soft, clayey limestone. Aguadilla County, Puerto Rico. February 1922.
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This dataset summarizes impairment status for HUC12 watersheds at the CONUS scale using the EPA publicly available Assessment, Total Maximum Daily Load (TMDL) Tracking and Implementation System (ATTAINS) geospatial package and the USGS Watershed Boundary Dataset (WBD). ATTAINS is an online system maintained by the EPA containing information about the condition of the Nation’s surface waters, as reported by individual states. These data were downloaded in October 2023 and primarily reflect 2022 stream conditions. Because of the varying data types that exist in the database, an independent methodology was developed for summarizing impairment status for HUC12 watersheds using the USGS WBD as detailed in this metadata...
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Dissected upland northeast of Balltown and north of Tionesta Creek. Forest County, Pennsylvania. May 9, 1921.
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View north toward Clermont. Elk County, Pennsylvania. May 9, 1921.
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Slag dump of steel plant southeast of Steelton (B 8). New Cumberland quadrangle. Pennsylvania. No date.
Categories: Image; Tags: Pennsylvania, photo print


map background search result map search result map EPA Impaired Waters presence and causes for HUC12 watersheds across the Conterminous U.S. Airborne radiometric survey, Boulder Batholith region, Montana, 2022 Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024 Decompartmentalization Physical Model (South Florida Water Management District) Periphyton Abundance and Biovolume Data 2017–21 Decompartmentalization Physical Model (South Florida Water Management District) Periphyton Abundance and Biovolume Data 2017–21 Airborne radiometric survey, Boulder Batholith region, Montana, 2022 Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024 EPA Impaired Waters presence and causes for HUC12 watersheds across the Conterminous U.S.