However, the following list contains links to many of the most interesting and informative Web sites related to topics explored in the chapter that we were able to locate. Check them out, but make sure you come back to do more investigating when you're done.

About Geysers

Here is some good information, photos, and links related to geysers.

Carlsbad Caverns National Park

Here is the home page of Carlsbad Caverns National Park.

Cave Database

This site contains the world cave database sorted by depth, length, and country.

Cave Links

This site provides an extensive listing of cave links from the National Speleological Society.

Caves Directory

This site has information on show caves in the United States.

Caving Links

Here is information on caving from the Great Outdoor Recreation Pages (GORP) site.

Edwards Aquifer, Texas

The Edwards Aquifer in Texas is a unique groundwater system and one of the most prolific artesian aquifers in the world.

Groundwater Calculations

Online groundwater calculators from LMNO Engineering, Research, and Software, Ltd.

Groundwater Foundation

The Groundwater Foundation is dedicated to informing the public about one of our greatest hidden resources, groundwater.

Groundwater Information Pages (USGS)

This site provides a good source for groundwater information hosted by the United States Geological Survey (USGS).

Groundwater Primer

Here is a good basic introduction to groundwater from the Environmental Protection Agency (EPA).

International Geothermal Association

This site offers a good explanation and examination of geothermal energy.

Karst Links

Links to websites with information about karst, from the Karst Waters Institute.

Mammoth Cave National Park

Here is the Mammoth Cave National Park home page.

National Ground Water Association

The mission of the National Ground Water Association is to provide professional and technical leadership in the advancement of the ground water industry and in the protection, the promotion, and the responsible development and use of ground water resources.

National Speleological Society (NSS)

The NSS was founded for the purpose of advancing the study, conservation, exploration, and knowledge of caves.

TopoZone

The TopoZone bills itself as the Web's center for recreational and professional topographic map users. Here you can interactively view topographic maps from the entire United States.

Virtual Cave

The Virtual Cave has collected images from around the world and combined them to generate an 'ideal' cave - one that contains an example of every major type of speleothem, or secondary mineral deposit.

Water Resource Terms (Glossary of)

A glossary of water resource terms is from the Edwards Aquifer home page.