The following are links to other web sites that provide additional information on related topics, including amphibians, scientific research in the Sierra Nevada, and Sierra Nevada natural history. Right-click links to open them in a new window.

• AmphibiaWeb: Species-specific information on the natural history and status of the world's amphibians.
• Amphibian Specialist Group - IUCN/SSC: Stimulating, developing, and executing practical programs to conserve amphibians and their habitats around the world.
• California Herps: An illustrated atlas documenting California's diverse reptile and amphibian fauna.
• Declining Amphibian Populations Task Force - California/Nevada Working Group: Scientists and managers working to protect imperiled amphibians in California and Nevada.
• Sierra Nevada Ecosystem Project: 1996 report to Congress on the "State of the Sierra Nevada".
• Sierra Nature Notes: The online journal of natural history news in the Sierra Nevada.
• California School of Flyfishing: Ralph and Lisa Cutter's school is one of the best and is based on a foundation of environmental stewardship and conservation.