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_18600760_20 (land___sqmi__ VARCHAR, latitude VARCHAR)

### Question ###
What is the land area (sqmi) for the township at longtidue 47.548602?

### Accurate SQL ###

SELECT land___sqmi__ FROM table_18600760_20 WHERE latitude = "47.548602"