This USGS report presents an overview of the interactions between ground water and surface water in a variety of terrains. It serves as a general educational document with the intention of helping agencies understand the basic science involved in the management and protection of aquifers and watersheds. The report describes the natural processes of ground water and surface water interactions and the ... Full description.

This site features a Flash animation that illustrates how to grid the earth with the latitude (parallel) and longitude (meridian) coordinate system. This resource is suitable for use in lectures, labs, or other teaching activities. Full description.

This is a collection of panoramic maps from the American West, including parts of Washington, Oregon, Idaho, Wyoming, Utah, Colorado, Nevada, Arizona and New Mexico. The images were created from numerical elevation data and linear data sets. The map views are made from high simulated elevations, usually between 25 and 100 kilometers above sea level. Most encompass areas containing thousands of square ... Full description.

This site provides Flash animations that demonstrate the formation of erosional coastal landforms. Visualizations illustrate the erosional processes responsible for the creation of arches and straightening coastlines. These resources may be integrated into lectures, labs or other activities. Full description.

This site features a Flash animation that illustrates the concept of scale by portraying one location from a series of distances from the land surface. This animation can be paused and rewound to stress important points and is suitable for use in lectures, labs, or other teaching activities. Full description.

This site provides Flash animations that illustrate form variations in sand dunes. Visualizations, photographs and supporting text demonstrate the conditions necessary to produce various dune shapes, including longitudinal, crescent, star, parabolic and transverse dunes. These resources may be integrated into lectures, labs or other activities. Full description.

This site features QuickTime and Flash animations that address issues cartographers face as they try to fit a three-dimensional surface on a flat planar surface while making maps. Characteristics and distortions of cylindrical, conical, planar, and Goode's projections are discussed. These resources are suitable for use in lectures, labs, or other teaching activities. Full description.

This site features several Flash animations that illustrate the concept of isopleths, or contour lines of equal value. Most of the animations are interactive and allow the user to interpret contour spacing, hachured lines, and valley/ridge placement. One animation allows the user to practice drawing contour lines. These resources are suitable for use in lectures, labs, or other teaching activities. ... Full description.

This site provides animations and images showing a variety of depositional landforms resulting from longshore drift. Animations demonstrate both naturally occurring landforms and what happens when humans interrupt sediment transport processes through river and coastal engineering projects. The site also features a collection of coastal photographs. These resources can be integrated into lectures, ... Full description.

This site features Flash animations that illustrate temporal changes from remotely sensed images, and compare and contrast the benefits of using aerial photographs, topographic maps, and overlays of the two to identify spatial patterns. A third animation depicts the total sediment thickness of the world's ocean basins. These interactive resources are suitable for use in lectures, labs, or other teaching ... Full description.