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_36684 ( "Name" text, "Number" text, "Namesake" text, "Albedo feature name" text, "Area" text, "Current map" text )

### Question ###
What is the current map designation of the feature which was named for discovery rupes?

### Accurate SQL ###

SELECT "Current map" FROM table_36684 WHERE "Namesake" = 'discovery rupes'