Mehr zum Thema "laser scaning"
Rushmore to add laser scans, digital mapping to its preservation arsenal
19.05.2009MOUNT RUSHMORE NATIONAL MEMORIAL , S.D. (5/19/09) — When you get to be a national icon of a certain age, you need a little help looking smooth and youthful. Mount Rushmore National Memorial, which turns 68 this year, undergoes a facelift every year.
