In the summer of 2018, CyArk digitally documented the Thomas Jefferson Memorial on the National Mall in Washington, DC. Obtaining baseline documentation of the monument was crucial to the site's conservation of the structure as site managers work to better understand the growth of biofilm on the monument's dome. Working with the National Park Service, CyArk used terrestrial photogrammetry (Nikon D810 and Phase One Medium format camera) and laser scanning (Faro X330) to document the exterior of the structure. While CyArk typically uses drones to capture all aspects of cultural heritage sites, the nation's capital has restricted airspace. To successfully capture aerial photographs of the monument, CyArk photographed the site from the National Park Service's law enforcement helicopter. The site has been able to use the data CyArk collected to better preserve the monument and monitor biological and environmental impacts on the structure over time.