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_15851155_1 ( location VARCHAR, control VARCHAR, founded VARCHAR )

### Question ###
Name the location when control is private and founded is 1870

### Accurate SQL ###

SELECT location FROM table_15851155_1 WHERE control = "Private" AND founded = 1870