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• News: Weather  (224)
• Science: Biology: Ecology  (815)
• Science: Earth Sciences  (5,686)
• Science: Earth Sciences: Geology  (1,109)
• Science: Environment  (6,239)

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• Altitude Profiles of Mountains - Altitude profiles of famous and unknown climbs.
• Cartographic bookmarks - Over 10,500 links to sites with and about maps.
• Color Landform Atlas of the United States - Maps include satellite information, 1895 state maps, and links to outside resources.
• The Distinctiveness of Geography - Systematic development of a series of definitions of various aspects and subdisciplines of Geography.
• Internet Resources for Physical Geography - Extensive list of links to sites pertaining to various subdisciplines of Physical Geography.
• Iowa Geological Survey Bureau, USA - Website of the Geological Survey Bureau of the Iowa Department of Natural Resources, including a Geologic Sample Database (GEOSAM)with geologic information for 35,000 locations in Iowa.
• Maps and Geography - Map machine of National Geographic
• NASA's Global Change Master Directory - A comprehensive directory of information about Earth science data, including a broad coverage of the oceans, atmosphere, hydrosphere, solid earth, biosphere and human dimensions of global change.
• Physical Geography Net Links - Guide to many Physical Geography sites
• Physical Geography on the Internet. - A wide choice of links to sites dealing with earth surface features including natural hazards.
• Physical Geography sites on Internet - Index of articles about Daylight Saving Time, the hydrologic cycle, El Nino, rivers, seasons, ice ages, and more topics in Physical Geography
• The Six Essential Elements of Geography - What makes geography?
• Soil and Water Conservation Society - A non-profit, scientific and educational organization of professional conservationists.
• USDA-Natural Resources Conservation Service - Provides links to conservation service offices in Fort Worth, Texas.
• USGS -- Water Resources of the United States - Includes information on water use, with both historical and current data.
• USGS Global Change Research Program - The U.S. Geological Survey's Global Change Research Program is an international source for ground-based and remotely sensed earth science data and information used by global change researchers and contributing to assessments of the potential effects of global change on society.
• Virtual Geography Department Project - Series of online course in geography including slide shows.