LYCOS RETRIEVER 
Usgs
built 271 days ago
This interactive Web site provides access to historic USGS topographic maps going back into the late 19th Century when most of California was still undeveloped. An examination of the same location on maps of different ages shows the gradual progression of land use over time.
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According to a new USGS report on NVEWS, since 1980, 45 eruptions and 15 cases of notable volcanic unrest have occurred at 33 U.S. volcanoes. About half of the most threatening U.S. volcanoes are monitored at a basic level and a few are well monitored with a suite of modern instruments. However, the report cautions, monitoring capabilities at many hazardous volcanoes are sparse or antiquated, and some hazardous volcanoes have no ground-based monitoring whatsoever.
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This is a site hosted at the USGS Earth Resources Observation and Science (EROS) by the USGS. Here you will find public web map services, and interfaces developed at the center. Many of the public web map services are published on the Geography Network, and some national services are cohosted by ESRI. (Read more)
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Created by an act of Congress in 1879, the USGS has evolved over the years, matching its talent and knowledge to the progress of science and technology. Today, the USGS stands as the sole science agency for the Department of the Interior.
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The USGS AmericaView Program is dedicated to expanding the understanding and applications of the science of remote sensing. In cooperation with the AmericaView consortium of universities, the USGS is working toward achieving the following broad set of goals.
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The USGS and the City of Findlay have devised an innovative way to alert residents and emergency personnel when floodwaters from the Blanchard River are expected to reach critical levels. The USGS recently installed four new streamflow and rain gages, which will enhance the National Weather Service's ability to accurately forecast flood peaks in the Findlay area and provide additional early-warning capabilities. A News release and article in the
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