Heh, I was just reading up on this yesterday while doing some recreational research into atomic weapons testing in Nevada. Look on Google Maps here to see a thousand craters [0]. Turns out, they even give tours once a month [1].

[0] https://www.google.com/maps/@37.1496894,-116.0575635,3767m/d...

[1] https://www.nnss.gov/pages/PublicAffairsOutreach/NNSStours.h...