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Penn Pilot (Historical Aerial Photo Library) 124 recent views
Penn Pilot, a project sponsored by the Pennsylvania Geological Survey, is an online library of digital historical aerial photography for the Commonwealth of Pennsylvania. Using... -
PAMAP Program LAS Files (LiDAR Data of Pennsylvania) 46 recent views
This dataset consists of classified LiDAR (Light Detection and Ranging) elevation points produced by the PAMAP Program. Additional information is available at the PAMAP website:... -
National Weather Service - WEATHER 38 recent views
WEATHER is the expected weather (precipitating or non-precipitating) valid at the indicated hour. Precipitating weather includes type, probability, and intensity information. In... -
National Land Cover Database - Land Cover Layer - Washington State, Northwest coast 30 recent views
The National Land Cover Database 2001 land cover layer for mapping zone 01 was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics... -
NatureServe Element Occurrence Data for Rare and Endangered Species in the United States and Canada 29 recent views
NatureServe, in collaboration with its member Natural Heritage Programs and Conservation Data Centres, maintains a database of rare and imperiled species and plant communities... -
National Land Cover Database - Land Cover Layer - California, West coast 27 recent views
The National Land Cover Database 2001 land cover layer for mapping zone 03 was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics... -
PLANTS Identification Key online (Wetland Monocots: SLIKS v2.1) 26 recent views
A draft interactive key and plant character data set for U.S. wetland monocots is available for testing on-line or by downloading the PLANTS Identification-Wetland Monocots... -
Tornados Mid-Atlantic States 1950 to 2004 22 recent views
This map layer shows tornado touchdown points in the United States, Puerto Rico, and the U.S. Virgin Islands, from 1950 to 2004. Statistical data were obtained from the National... -
Pennsylvania Building Footprints (Available) 22 recent views
Building Footprints from Individual Counties for the State of Pennsylvania. This dataset is incomplete and Building Footprints will be added as available. Building Footprints... -
Populated Places - U.S. Geographic Names Information System (GNIS) 21 recent views
The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board on... -
North American Breeding Bird Survey Routes 20 recent views
The North American Breeding Bird Survey (BBS), which is coordinated by the Biological Resources Division and Canadian Wildlife Service, is a primary source of population trend... -
Acid Mine Drainage Impact Study: Water quality and Stream Reach 20 recent views
Acid mine drainage (AMD) from active and abandoned coal mines has resulted in severely degraded water quality and the substantial loss of aquatic biodiversity. In many...
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