When the Hualapai tribe imposed a stay-at-home order and closed its Skywalk, the horseshoe-shaped, glass-bottomed walkway that extends over the south rim of the Grand Canyon, last month, it gave its …When the Hualapai tribe imposed a stay-at-home order and closed its Skywalk, the horseshoe-shaped, glass-bottomed walkway that extends over the south rim of the Grand Canyon, last month, it gave its …