The park was the site of a demonstration by Greenpeace on the morning of July 8th. Park staff and security detected the unauthorized trespassing on the sculpture early that day, and protection rangers responded within minutes with the assistance of area, state and federal agencies. During this time, several Greenpeace activists rappelled over the face of the Abraham Lincoln carving and unfurled a 65 foot by 35 foot banner to the right of Abraham Lincoln as seen from the rest of the park. There was never any danger to park visitors during the incident and park interpretation and education programs continued without disruption. Although all security measures functioned exactly as designed, it appears there was damage to government property to gain access to a controlled area. All activists were safely apprehended, removed from the mountain, and taken into custody. Twelve were turned over to federal authorities.