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_10 (geo_id INTEGER, water__sqmi_ VARCHAR)

### Question ###
What is the geo ID for the township with 0.771 square miles of water?

### Accurate SQL ###

SELECT MAX(geo_id) FROM table_18600760_10 WHERE water__sqmi_ = "0.771"