Rockhound code of Ethics - http://www.amfed.org/ethics.htm

Fossil Sites

• Information on fossils - http://www.thefossilforum.com
• Information on trilobites - http://www.trilobites.info/
• Information on Petosky Stones - http://www.michigan.gov/documents/deq/ogs-gimdl-GGPS_263213_7.pdf
• Beach Goers Guide to Lake Michigan Fossils and Rocks - http://www.fieldmuseum.org/science/blog/beachgoers-guide-lake-michigan-fossils-and-rocks