Robert Rowley is the sole collector and owner of the world's most extensive dinosaur footprint collection. He has personally collected every specimen in this collection.

Many museums across the United States have his dinosaur footprints exhibited in them. Due to his generosity, Robert has personally given footprints to various museums and individuals. These footprints are known as "Natural Casts," which he has extracted from various colas mines in Eastern Utah. Robert has worked in the mining industry from the early 1970s until his retirement in 2009, a total of 37 years. He obtained his bachelor's degree in Science and Geology from the University of Utah. The collection of museum-quality dinosaur footprints has become a lifelong endeavor for him over the years. He has detailed journal entries of each footprint and when they were extracted from the coal seams.

He worked for McCulloch Oil Company, a mining company, and was bought out by Braztah Coal Company and then later on by Price River Coal Company & Amax Coal Company. These mining companies had mined on their privately owned land sites and had never mined on designated "BLM" lands owned by the federal government. The mining company gave their permission to anyone wanting to extract a footprint. The owner and superintendent of the Price River Coal Company helped him extract a footprint from the coal mine roof, detailed in my journal entries. When any miner came across a dinosaur footprint, he was permitted to carry it out from the underground coal mine workings. That same permission was granted to Robert as well by his superintendent.

Robert has co-authored a scientific paper with Dr. Lee R. Parker, a Paleobotanist from San Luis Obispo Polytechnic University, California, and Dr. John K. Balsley from the Colorado School of Mines in Denver, Colorado.