Compare to excavation of the Atari video game burial:

Remnants of E.T. and other Atari games were discovered in the early hours of the excavation, as reported by Microsoft’s Larry Hryb.[48][49] A team of archaeologists was present to examine and document the Atari material unearthed by excavation machinery… Only about 1300 cartridges of the estimated 700,000 were removed from the burial, as the remaining materials were deeper than expected, which made them more difficult to access, according to Alamogordo mayor Susie Galea.[51] The cartridges found were from 59 different games, the majority of which were for the Atari 2600; six were Atari 5200 titles. Atari hardware was also excavated.[52] The burial was refilled following this event.