The troops in this photo were only six miles (6!) or 10 km from the blast center.
One soldier to the next: "Hey buddy, when you feel the shockwave coming, hit the deck. Oh yeah, try not to breathe when the radioactive dustcloud gets here...pass it on."
The observation team in the previous story may have been even closer...
Overall, about 85% of the tests were below ground. However, the above ground tests were marketed as tourist attractions in newly developed Las Vegas, where the clouds could be seen as a backdrop to the skyline. See the promo piece for "atomic tourism" below...
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