Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_57008 ( "Park name" text, "County or counties" text, "Area in acres (ha)" text, "Date founded" real, "Stream(s) and / or lake(s)" text )

### Question ###
what is the most recent date founded in elk county?

### Accurate SQL ###

SELECT MAX("Date founded") FROM table_57008 WHERE "County or counties" = 'elk county'