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_157826_1 ( county VARCHAR, city_town VARCHAR )

### Question ###
In which county is the city/town of Halden located?

### Accurate SQL ###

SELECT county FROM table_157826_1 WHERE city_town = "Halden"