Desert Woodrat
Neotoma lepida

Desert pack rat nests can be used by the same pack rat families for generations and generations.

This rodent is commonly known as the “pack rat” or “trade rat” named for collecting any shiny or metallic object it fancies. Its burrow is easily recognized by the rubbish littered about the entrance.

More about the wood rat:
https://digital-desert.com/wildlife/rodents/desert-woodrat.html