​Content supplied by:

Dr. Jarrod Burks - Archaeologist and Hopewell Anthropologist
Dr. Bill Romain - Archaeoastronomer
Dr. Bob Hines - Historian
Paul Knoop - Naturalist
Doug Wynn - Herpetologist
Richard McClish - Geologist and Paleontologist
Linda Pansing - Archeological Curation
Dr. Erik Klemetti - Volcanologist

Graphics prepared by
Bob Hines