The warming climate and Colorado’s fast-growing population affect the sensitive Rocky Mountain ecosystems that are already fire-prone zones. Increasingly frequent wildfires have been an urgent issue for mountain communities. Rocky Mountain landforms trigger lightning, fire, wind, and debris flows. Fire is an important ecological process; however, fire events produce outputs such as the loss of human life and property, air pollution, and postfire debris/mudflows. Keeping people and infrastructure away from fire prone areas and reducing human-caused fires may be an efficient strategy for adapting to climate challenges. This research suggests the establishment of an open-fire ban zone within the wildland-urban interface of the Front Range, where most of Colorado’s population, cultural, and economic centers are located. In remote fire-prone areas, populations should be limited so that large infrequent fires can take their natural course and provide benefits to the ecological process. The research method includes four components: 1) a survey of Colorado wildfires from 2011 to 2016 over 100 acres; 2) a Research Publication Study including fire ecology, postfire debris/mudflows, fire impacts on the environment and humans, as well as climate warming and increasing populations in the Colorado Front Range; 3) field investigations of fire and postfire debris flow sites; and 4) the application of systems thinking, and development of a framework for the prediction models of fire hazards and postfire debris sites.