A noise propagation model created by Carleton professor Tsegaye Nega has been used in studies ranging from conservation in urban areas to evaluating housing prices. A variety of inputs must be considered in these models, a major one being buildings. As a barrier to the propagation of noise from sources such as automobiles, both the height and footprint of the building are factors. In my first major project as an employee of Carleton College’s GIS lab, I analyzed and manipulated LIDAR data from seven counties in the TCMR in order to extract the heights of every building for use as input in refining the existing noise model