Written items, especially those that are official, factual, or informative, often including graphics as well as text.
SAGEMAP: a web-based spatial dataset for sage grouse and sagebrush steppe management in the Intermountain West [ More info] Links to fact sheet describing the database of spatial information on sage grouse and sagebrush habitats.
Salvinia molesta, Salvinia weevil, Salvinia minima [ More info] Life history and identification of Salvinia species, a floating, rootless tree fern and a noxious aquatic weed. Site includes posters, instructions on submitting sightings, how to subscribe to a listserv on the weed, and a bibliography.
Scientific drilling in Long Valley, California: What will we learn? [ More info] Description of 1998 drilling project at Long Valley Exploratory Well located on Long Valley Caldera's resurgent dome to monitor changing conditions beneath the dome. (Document in PDF format.)
Selected volcano information [ More info] Selected books, maps, videos, and other materials produced by the USGS Volcano Hazards Program. Many products highlighted here are intended for general audiences.
Sound waves [ More info] Monthly online newsletter covering coastal and marine science with links listed under sections titled fieldwork, meetings, outreach, and research.
South Florida Ecosystem History Project [ More info] Project is designed to integrate studies from a number of researchers compiling data from terrestrial, marine, and freshwater ecosystems within south Florida. Links to publications, maps, posters, and data of studies.
South Florida Information Access (SOFIA) data exchange [ More info] Provides links to the data, models and maps on the biology, ecology, geology, mapping, hydrology, and chemistry of research studies in southern Florida.
Spatial Data Transfer Standard (SDTS) information site [ More info] Homepage for ISGS Spatial Data Transfer Standard (SDTS) information with links to software, FTP site, standard, and data available on line, USGS mass conversion schedule, meetings, and related web sites.
Specification for the U.S. Geological Survey Historical Topographic Map Collection [ More info] What you can expect of the quality, completeness, procedures, content, format, and labeling of one of the most comprehensive historical geographic information resource in the Nation.
Stoneflies of the United States [ More info] Links to checklists and species maps showing the distribution of stoneflies in the United States with links to other information websites on stoneflies and reference list.
Alphabetical Index of Topics
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