This is a locator map showing Copper River Census Area in Alaska - Provisional pending finalisation
Own work

this census.gov source was used to determine change effective from January 02, 2019
this data.census.gov source was used for the boundaries, but as noted on the first source "The Census Bureau does not have maps illustrating the boundary changes listed on this web page" - however I deemed it reasonable that the boundaries are likely to follow the existing designated sub-divisions either completely or mostly, especially as the census is April 1 2020.
KylieTastic