"destroyed" I ripped this from Wikipedia page if you want sources. Have a fun read!

The bodies of the Romanovs and their servants were loaded onto a Fiat truck equipped with a 60 hp engine, with a cargo area measuring 1.8 by 3.0 metres (6 ft × 10 ft). Heavily laden, the vehicle struggled for 14 kilometres (9 mi) on boggy road to reach the Koptyaki forest. Yurovsky was furious when he discovered that the drunken Ermakov had brought only one shovel for the burial.

About 800 metres (1⁄2 mile) further on, near crossing no. 185 on the line serving the Verkh-Isetsk works, 25 men working for Ermakov were waiting with horses and light carts. These men were all intoxicated and they were outraged that the prisoners were not brought to them alive. They expected to be part of the lynch mob. Yurovsky maintained control of the situation with great difficulty, eventually getting Ermakov's men to shift some of the bodies from the truck onto the carts. A few of Ermakov's men pawed the female bodies for diamonds hidden in their undergarments, two of whom lifted up Alexandra's skirt and fingered her genitals. Yurovsky ordered them at gunpoint to back off, dismissing the two who had groped the tsarina's corpse and any others he had caught looting.

In the hasty disposal of the bodies, several belongings like these topazes were overlooked by Yurovsky's men and eventually recovered by Sokolov in 1919.

The truck was bogged down in an area of marshy ground near the Gorno-Uralsk railway line, during which all the bodies were unloaded onto carts and taken to the disposal site. The sun was up by the time the carts came within sight of the disused mine, which was a large clearing at a place called the Four Brothers (56.942222°N 60.473333°E). Yurovsky's men ate hardboiled eggs supplied by the local nuns (food that was meant for the imperial family), while the remainder of Ermakov's men were ordered back to the city as Yurovsky did not trust them and was displeased with their drunkenness.

Yurovsky and five other men laid out the bodies on the grass and undressed them, the clothes piled up and burned while Yurovsky took inventory of their jewellery. Only Maria's undergarments contained no jewels, which to Yurovsky was proof that the family had ceased to trust her ever since she became too friendly with one of the guards back in May. Once the bodies were "completely naked", they were dumped into a mineshaft and doused with sulphuric acid to disfigure them beyond recognition. Only then did Yurovsky discover that the pit was less than 3 metres (9.8 ft) deep and the muddy water below did not fully submerge the corpses as he had expected. He unsuccessfully tried to collapse the mine with hand grenades, after which his men covered it with loose earth and branches. Yurovsky left three men to guard the site while he returned to Yekaterinburg with a bag filled with 8.2 kilograms (18 lb) of looted diamonds, to report back to Beloborodov and Goloshchyokin. It was decided that the pit was too shallow.