'About 90% of the carving on the mountain, removing about 450,000 tons of granite, was done using this'
dynamite
MOUNT RUSHMORE: About 90% of the carving on the mountain, removing about 450,000 tons of granite, was done using this
About 90% of the carving on the mountain, removing about 450,000 tons of granite, was done using this
About 90% of the carving on the mountain, removing about 450,000 tons of granite, was done using this
MOUNT RUSHMORE
dynamite
MOUNT RUSHMORE