Staley, Dennis M., Thad A. Wasklewicz, Jeffrey A. Coe, Jason W. Kean, Scott W. McCoy, and Greg E. Tucker. 2011. “Observations of Debris Flows at Chalk Cliffs, Colorado, Usa: Part 2, Changes in Surface Morphometry from Terrestrial Laser Scanning in the Summer of 2009”. Italian Journal of Engineering Geology and Environment, November, 759-68. https://doi.org/10.4408/IJEGE.2011-03.B-083.