'From 1927 to 1931 dynamite blasts removed 450,000 tons of rock from this mountain & national memorial'
Mount Rushmore
BOOM GOES THE DYNAMITE!: From 1927 to 1931 dynamite blasts removed 450,000 tons of rock from this mountain & national memorial
From 1927 to 1931 dynamite blasts removed 450,000 tons of rock from this mountain & national memorial
From 1927 to 1931 dynamite blasts removed 450,000 tons of rock from this mountain & national memorial
BOOM GOES THE DYNAMITE!
Mount Rushmore
BOOM GOES THE DYNAMITE!