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_71990 ( "Rank" real, "Mountain Peak" text, "Province" text, "Mountain Range" text, "Location" text )

### Question ###
Which location includes Coast Mountains with a rank less than 18 at Skihist Mountain?

### Accurate SQL ###

SELECT "Location" FROM table_71990 WHERE "Mountain Range" = 'coast mountains' AND "Rank" < '18' AND "Mountain Peak" = 'skihist mountain'