Robert Rowe Atkins North America No description specified. 1-5 (5 Records) Documents Archaeology in a Cretaceous Swamp (2015) The Lone Spruce Site, a High-Altitude Seasonal Camp of the Upper Colorado River Basin (2023) Mammoth and Mastodons….They are what’s for Dinner (2016) Megafauna 101 for Archaeologists (2019) Prehistoric Mining in the High Mountains of Northern Colorado (2017)