Land surface characteristics
Features and attributes of earth's land surface.
Topographic Science [ More info] Explains and illustrates the types of topographic information USGS obtains, how we use this information, and how to obtain topographic data for your own work.
USGS Alaska State Mosaic [ More info] Using 172 Scenes from the Multi-Resolution Land Characteristics 2001 collection geometrically and radiometrically aligned, we produced seamless, relatively cloud-free image of the entire state.
USGS Geography Products [ More info] USGS mapping sciences page containing links describing cartographic and geographic products and programs. The information products are available in printed and digital formats.
Watershed processes and modeling [ More info] Links to published materials produced by the Watershed Processes and Modeling Project on watershed model TOPMODEL, compilation of STATSGO soils data, climate change, landscape heterogeneity in ecoregions, and other links.
Western Region Geology and Geophysics Center [ More info] Overview of the research of this organizational unit with links to projects and activities and to geologic information on the western U.S.
Alphabetical Index of Topics
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