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_name_10 ( altitude_m VARCHAR, distance_medellín_downtown___km__ VARCHAR )

### Question ###
What is the altitude for the distance medellin downtown (km) is 42?

### Accurate SQL ###

SELECT altitude_m FROM table_name_10 WHERE distance_medellín_downtown___km__ = "42"