This resource presents a brief overview the glaciation that created the Bering Land Bridge National Preserve. Links are provided to maps of the region, information about coastal geology, glaciers, volcanoes, mountains, and recommended reading.

This in-class or homework exercise asks students to associate different dinosaur trackways with their geographic locations and rock formation names based on clues given from various points of view. Learning goals, context for use, teaching tips, materials, assessment tips and related resources are provided.

This site provides a non-technical description of the origin and evolution of the landscape of the Great Plains physiographic province. Information about the history and descriptions of the various landforms of the Great Plains is included.

This interactive mapping system is one component of the U. S. Geological Survey's Framework Studies and Assessment of the Gulf Coast Project. This project provides the geologic, geophysical, and geochemical framework for the region. The mapping system displays different aspects of the energy resources which reside in the Gulf of Mexico Basin, one of the major hydrocarbon producing areas of the world.

This website is a cooperative research project between the U.S. Geological Survey (USGS), NASA, the U.S. Army Corps of Engineers, and the University of New Orleans. The goal of the project is to investigate coastal change that occurred as a result of Hurricane Katrina. The site includes aerial video, still photography, and laser altimetry surveys of post-storm beach conditions that were collected August 31 and September 1, 2005 for comparison with earlier data. The comparison data can be used to refine predictive models of coastal impacts from severe storms and aid in disaster recovery and erosion mitigation.

In this STELLA modeling project, students create a model of two marine terrace platforms separated in elevation by a cliff. They use this model to examine how landscapes evolve over time in response to diffusive processes such as raindrop impacts, the annual cycle of freeze-thaw, tree throw, and the action of burrowing animals. Learning goals, context for use, teaching tips, materials, assessment tips and related resources are provided.

This 206-page PDF is a regionally consistent and integrated geologic spatial database for the Northern Rocky Mountains of Montana, Idaho, and eastern Washington. It brings forty-three 1:100,000- to 1:250,000-scale digital geologic maps into a common database format. The regional geologic database features ArcInfo coverage (NR_GEO) that contains spatial data for both lines (contacts, faults, fold axes, dikes, sills, veins, garnet isograd, boundaries) and polygons (geologic units). The database represents the original content of the published maps and provides easily used and consistent content.

This EPA document provides detailed information about the gold mining industry in terms of the wastes associated with gold mining and processing. The report briefly characterizes the geology of gold ores and the economics of the industry. Following this discussion is a review of gold extraction and beneficiation methods; this section provides the context for descriptions of wastes and materials managed by the industry, as well as a discussion of the potential environmental effects that may result from gold mining. The report concludes with a description of the current regulatory programs that apply to the gold mining industry as implemented by EPA, Federal land management agencies, and selected states. Specific information from EPA site visits is included for the Brewer Mine, Colosseum Mine, Nerco Minerals Cripple Creek, and the Newmont Gold Company in Nevada.

In this STELLA modeling exercise, students create a model of heat flow in the outer kilometer of Earth's crust. Then they perform experiments to change the air temperature variable in an attempt to replicate the findings of Lachenbruch and Marshall (1986) who used inflections in the geothermal gradient of Alaskan permafrost to search for evidence of recent climatic change. Learning goals, context for use, teaching tips, materials, assessment tips and related resources are provided.

This website is the homepage of the USGS Library, which provides online access to USGS publications, as well as a complete catalog of all the records housed in the USGS libraries. The site is searchable and includes links to other resources.