This report discusses how natural processes and human activities affect the interactions of ground water and surface water, and the importance of considering ground water and surface water as a single resource. Topics include natural processes of ground- and surface-water interaction; chemical interactions; and the effect of landscapes on these interactions. There is also discussion of the effects ... Full description.

Users can choose to download or order six posters that depict water-resources topics and are drawn in a cartoon format. Written narrative on the back elaborates on the topic of each poster. They are available in color, or in black-and-white for coloring. Full description.

This poster summarizes common uses of mineral resources in our homes, offices, and equipment we use daily. It shows a diagram of a house surrounded by various mineral names and some of the products made from them. There are also some definitions of the various classes of mineral commodities. Full description.

This report provides a review of significant changes that occurred during the twentieth century in industries requiring use of metals and industrial minerals. It includes a timeline and a summary that discusses major achievements in mineral production and events that affected the U.S. mineral industry. These events are related to overall U.S. mineral consumption and years of war or recession. Full description.

This fact sheet provides an overview of the gases emitted by volcanoes, which consist mostly of water vapor, carbon dioxide, and sulfur dioxide. Topics include reasons for studying them, potential hazards, methods for studying them, and some facts about the gases emitted by the eruption of Mount St. Helens. A downloadable, printable version is available. Full description.

This poster features a portrait of Gerardus Mercator on one side and examples of the eighteen most common map projections on the other. Each example includes a description that explains the properties and uses of the projection. There are also summary tables of projection properties, general uses, and geographic areas most suitable for mapping with a given projection. The poster is viewable online ... Full description.

This preliminary assessment of urban growth in the Central Valley of California is intended to illustrate the dramatic changes to the Central Valley landscape over the past 100 years. Data products include an urban growth timeline for the years 1900 to 1996, an animated version of the same timeline, and graphs showing the increase in population and built-up land for the same period. Full description.

This guide provides illustrated descriptions of 46 common and important varieties of igneous, sedimentary, and metamorphic rock found in the San Francisco Bay region. Rock types are described in context of their identification qualities, how they form, and where they occur. The guide also provides a discussion of regional geology, plate tectonics, the rock cycle, the significance of the selected rock ... Full description.

This fact sheet provides an overview of basic scientific facts about landslides. Topics include the different types of landslides, ways that they might be triggered, and how to lessen the effects of landslides on people and structures. A set of links to additional information and some suggested publications are provided. A downloadable, printable version is also available. Full description.

This resource provides an overview of the distribution and occurence of water on Earth. Topics include where and how much water there is, the water cycle, and how water is measured. There is also discussion of characteristics and distribution of surface water, groundwater, glaciers, and icecaps. Full description.