This conversation with Gary Prost  is about  6 geologic tours of North America's Natural Wonders.   Dr. Gary Prost is a geologist with over 45 year experience in mineral exploration, petroleum exploration, mapping, and structural geology.   We’ll be discussing geologic tours of the world with reference to Gary Prost’s tour book titled “North America’s Natural Wonders – Appalachians, Colorado Rockies, Austin-Big Bend Country, Sierra Madre”.  Some highlights include discussing the geology of the Appalachian Mountains.  May this exchange serve to expand your knowledge on the go.For more information go to www.stoneconsulting.infoProst, G. (2020). Geologic Tours of the World - North America's Natural Wonders - Appalachians, Colorado Rockies, Austin-Big Bend Country, Sierra Madre. CRC Press.  https://www.amazon.ca/North-Americas-Natural-Wonders-Prost/dp/0367821257