In March of 1999, the second conference was held in Albuquerque, New Mexico. It focused on presentations from tools providers who had made significant advancements since Chattanooga (notably the Environmental Simulation Center and ESRI with its new Model Builder program). Conference attendees also worked to develop ideas for applying tools to Mesa del Sol, a 13,000 acre master planned community designed to promote sustainable development principles, and developing a strategy for further networking and promotion of tools development and application efforts. The next conference TCDDM III was held in 2000.