The closing keynote will focus on unique erosion control challenges faced today by the City and County of Denver's Department of Aviation, owner and operator of Denver International Airport (DEN). DEN is a unique property. At 53-square miles it is the second largest airport in the world and the biggest in the United States at almost twice the size of its domestic runner up, Dallas/Fort Worth International Airport. As the last major international airport built in the US, and one that was designed to remove the space constrains posed by the former airport, the land disturbance associated with original construction was massive and largely uncontrolled, given the pre-permitting era in which it was built. Now, after opening its doors more than two decades ago, the culture of ownership around the built environment is making its way to the unbuilt environment and bringing renewed success to land management practices.