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_56571 ( "County" text, "Year Founded" text, "County Seat" text, "2010 Census Population" real, "July 1, 2012 Population Estimate." real, "Area (Sq. Mi.)" real, "Land Area (Sq. Mi.)" real )

### Question ###
What is the total number of areas by square mile where the founding year was 1785, the county seat was in Spartanburg, and the land area by square mile was more than 811?

### Accurate SQL ###

SELECT SUM("Area (Sq. Mi.)") FROM table_56571 WHERE "Year Founded" = '1785' AND "County Seat" = 'spartanburg' AND "Land Area (Sq. Mi.)" > '811'