the US department of interior is going to destroy a LOT of records. they pertain to things such as oil and gas teases, mining, dams, wells, timber sales, marine conservation, fishing, endangered species, non-endangered
species, critical habitats, land acquisition, and a whole lot more. there's more information available here: https://altgov2.org/doi-records-destruction/
you can make freedom of informatoin requests if any of this data interests you but there is a deadline of november 26, 2018. a lot of data is about to go down the memory hole, and this is going to have a HUGE impact on researchers and scientists and by proxy the public at large.